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<p>Ground to ground <a href="https://en.wikipedia.org/wiki/Projectile_motion" target="_blank">projectile motion</a> equation implementations.
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<a href="#details">More...</a></p>
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<div class="textblock"><code>#include <cassert></code><br />
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<code>#include <cmath></code><br />
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<code>#include <iostream></code><br />
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</div><div class="textblock"><div class="dynheader">
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Include dependency graph for ground_to_ground_projectile_motion.cpp:</div>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">namespace  </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/dd0/namespacephysics.html">physics</a></td></tr>
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<tr class="memdesc:d5/dd0/namespacephysics"><td class="mdescLeft"> </td><td class="mdescRight">for IO operations <br /></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">namespace  </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d0/d20/namespaceground__to__ground__projectile__motion.html">ground_to_ground_projectile_motion</a></td></tr>
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<tr class="memdesc:d0/d20/namespaceground__to__ground__projectile__motion"><td class="mdescLeft"> </td><td class="mdescRight">Functions for the Ground to ground <a href="https://en.wikipedia.org/wiki/Projectile_motion" target="_blank">projectile motion</a> equation. <br /></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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Macros</h2></td></tr>
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<tr class="memitem:a525335710b53cb064ca56b936120431e" id="r_a525335710b53cb064ca56b936120431e"><td class="memItemLeft" align="right" valign="top"><a id="a525335710b53cb064ca56b936120431e" name="a525335710b53cb064ca56b936120431e"></a>
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#define </td><td class="memItemRight" valign="bottom"><b>_USE_MATH_DEFINES</b></td></tr>
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<tr class="memdesc:a525335710b53cb064ca56b936120431e"><td class="mdescLeft"> </td><td class="mdescRight">for assert() <br /></td></tr>
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<tr class="separator:a525335710b53cb064ca56b936120431e"><td class="memSeparator" colspan="2"> </td></tr>
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Functions</h2></td></tr>
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<tr class="memitem:ab00e9785fb2670f7af99d6f3d636f87c" id="r_ab00e9785fb2670f7af99d6f3d636f87c"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="#ab00e9785fb2670f7af99d6f3d636f87c">physics::ground_to_ground_projectile_motion::degrees_to_radians</a> (double degrees)</td></tr>
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<tr class="memdesc:ab00e9785fb2670f7af99d6f3d636f87c"><td class="mdescLeft"> </td><td class="mdescRight">Convert radians to degrees. <br /></td></tr>
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<tr class="separator:ab00e9785fb2670f7af99d6f3d636f87c"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a563e066975fed1b84750a0a47c3cbb37" id="r_a563e066975fed1b84750a0a47c3cbb37"><td class="memTemplParams" colspan="2">template<typename T > </td></tr>
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<tr class="memitem:a563e066975fed1b84750a0a47c3cbb37"><td class="memTemplItemLeft" align="right" valign="top">T </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="#a563e066975fed1b84750a0a47c3cbb37">physics::ground_to_ground_projectile_motion::time_of_flight</a> (T initial_velocity, T angle, double gravity=9.81)</td></tr>
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<tr class="memdesc:a563e066975fed1b84750a0a47c3cbb37"><td class="mdescLeft"> </td><td class="mdescRight">Calculate the time of flight. <br /></td></tr>
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<tr class="separator:a563e066975fed1b84750a0a47c3cbb37"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a10362eb607d7882bac3a0688504b00ff" id="r_a10362eb607d7882bac3a0688504b00ff"><td class="memTemplParams" colspan="2">template<typename T > </td></tr>
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<tr class="memitem:a10362eb607d7882bac3a0688504b00ff"><td class="memTemplItemLeft" align="right" valign="top">T </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="#a10362eb607d7882bac3a0688504b00ff">physics::ground_to_ground_projectile_motion::horizontal_range</a> (T initial_velocity, T angle, T time)</td></tr>
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<tr class="memdesc:a10362eb607d7882bac3a0688504b00ff"><td class="mdescLeft"> </td><td class="mdescRight">Calculate the horizontal distance that the projectile travels. <br /></td></tr>
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<tr class="separator:a10362eb607d7882bac3a0688504b00ff"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aa554429def63077ab7a550c0affbfefa" id="r_aa554429def63077ab7a550c0affbfefa"><td class="memTemplParams" colspan="2">template<typename T > </td></tr>
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<tr class="memitem:aa554429def63077ab7a550c0affbfefa"><td class="memTemplItemLeft" align="right" valign="top">T </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="#aa554429def63077ab7a550c0affbfefa">physics::ground_to_ground_projectile_motion::max_height</a> (T initial_velocity, T angle, double gravity=9.81)</td></tr>
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<tr class="memdesc:aa554429def63077ab7a550c0affbfefa"><td class="mdescLeft"> </td><td class="mdescRight">Calculate the max height of the projectile. <br /></td></tr>
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<tr class="separator:aa554429def63077ab7a550c0affbfefa"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aa8dca7b867074164d5f45b0f3851269d" id="r_aa8dca7b867074164d5f45b0f3851269d"><td class="memItemLeft" align="right" valign="top">static void </td><td class="memItemRight" valign="bottom"><a class="el" href="#aa8dca7b867074164d5f45b0f3851269d">test</a> ()</td></tr>
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<tr class="memdesc:aa8dca7b867074164d5f45b0f3851269d"><td class="mdescLeft"> </td><td class="mdescRight">Self-test implementations. <br /></td></tr>
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<tr class="separator:aa8dca7b867074164d5f45b0f3851269d"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ae66f6b31b5ad750f1fe042a706a4e3d4" id="r_ae66f6b31b5ad750f1fe042a706a4e3d4"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a> ()</td></tr>
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<tr class="memdesc:ae66f6b31b5ad750f1fe042a706a4e3d4"><td class="mdescLeft"> </td><td class="mdescRight">Main function. <br /></td></tr>
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<tr class="separator:ae66f6b31b5ad750f1fe042a706a4e3d4"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>Ground to ground <a href="https://en.wikipedia.org/wiki/Projectile_motion" target="_blank">projectile motion</a> equation implementations. </p>
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<p>Ground to ground projectile motion is when a projectile's trajectory starts at the ground, reaches the apex, then falls back on the ground.</p>
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<dl class="section author"><dt>Author</dt><dd><a href="https://github.com/Focusucof" target="_blank">Focusucof</a> </dd></dl>
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</div><h2 class="groupheader">Function Documentation</h2>
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<a id="ab00e9785fb2670f7af99d6f3d636f87c" name="ab00e9785fb2670f7af99d6f3d636f87c"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ab00e9785fb2670f7af99d6f3d636f87c">◆ </a></span>degrees_to_radians()</h2>
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<td class="memname">double physics::ground_to_ground_projectile_motion::degrees_to_radians </td>
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<td>(</td>
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<td class="paramtype">double</td> <td class="paramname"><span class="paramname"><em>degrees</em></span></td><td>)</td>
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<td></td>
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<p>Convert radians to degrees. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">radian</td><td>Angle in radians </td></tr>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>Angle in degrees </dd></dl>
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<div class="fragment"><div class="line"><span class="lineno"> 34</span> {</div>
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<div class="line"><span class="lineno"> 35</span> <span class="keywordtype">double</span> radians = degrees * (M_PI / 180);</div>
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<div class="line"><span class="lineno"> 36</span> <span class="keywordflow">return</span> radians;</div>
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<div class="line"><span class="lineno"> 37</span>}</div>
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</div><!-- fragment --><div class="dynheader">
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Here is the call graph for this function:</div>
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<div class="center"><iframe scrolling="no" frameborder="0" src="../../d9/d29/ground__to__ground__projectile__motion_8cpp_ab00e9785fb2670f7af99d6f3d636f87c_cgraph.svg" width="183" height="91"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe></div>
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</div>
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</div>
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</div>
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<a id="a10362eb607d7882bac3a0688504b00ff" name="a10362eb607d7882bac3a0688504b00ff"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a10362eb607d7882bac3a0688504b00ff">◆ </a></span>horizontal_range()</h2>
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<div class="memitem">
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<div class="memtemplate">
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template<typename T > </div>
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<td class="memname">T physics::ground_to_ground_projectile_motion::horizontal_range </td>
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<td>(</td>
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<td class="paramtype">T</td> <td class="paramname"><span class="paramname"><em>initial_velocity</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">T</td> <td class="paramname"><span class="paramname"><em>angle</em></span>, </td>
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<td class="paramtype">T</td> <td class="paramname"><span class="paramname"><em>time</em></span> )</td>
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<p>Calculate the horizontal distance that the projectile travels. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">initial_velocity</td><td>The starting velocity of the projectile </td></tr>
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<tr><td class="paramname">time</td><td>The time that the projectile is in the air </td></tr>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>Horizontal distance that the projectile travels </dd></dl>
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<div class="fragment"><div class="line"><span class="lineno"> 59</span> {</div>
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<div class="line"><span class="lineno"> 60</span> <span class="keywordtype">double</span> Vix = initial_velocity * (<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/math/cos.html">std::cos</a>(<a class="code hl_function" href="#ab00e9785fb2670f7af99d6f3d636f87c">degrees_to_radians</a>(angle))); <span class="comment">// calculate x component of the initial velocity</span></div>
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<div class="line"><span class="lineno"> 61</span> <span class="keywordflow">return</span> Vix * <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/chrono/c/time.html">time</a>;</div>
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<div class="line"><span class="lineno"> 62</span>}</div>
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<div class="ttc" id="acos_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/numeric/math/cos.html">std::cos</a></div><div class="ttdeci">T cos(T... args)</div></div>
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<div class="ttc" id="aground__to__ground__projectile__motion_8cpp_html_ab00e9785fb2670f7af99d6f3d636f87c"><div class="ttname"><a href="#ab00e9785fb2670f7af99d6f3d636f87c">physics::ground_to_ground_projectile_motion::degrees_to_radians</a></div><div class="ttdeci">double degrees_to_radians(double degrees)</div><div class="ttdoc">Convert radians to degrees.</div><div class="ttdef"><b>Definition</b> ground_to_ground_projectile_motion.cpp:34</div></div>
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<div class="ttc" id="atime_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/chrono/c/time.html">std::time</a></div><div class="ttdeci">T time(T... args)</div></div>
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Here is the call graph for this function:</div>
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<div class="center"><iframe scrolling="no" frameborder="0" src="../../d9/d29/ground__to__ground__projectile__motion_8cpp_a10362eb607d7882bac3a0688504b00ff_cgraph.svg" width="404" height="142"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe></div>
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</div>
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<a id="ae66f6b31b5ad750f1fe042a706a4e3d4" name="ae66f6b31b5ad750f1fe042a706a4e3d4"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ae66f6b31b5ad750f1fe042a706a4e3d4">◆ </a></span>main()</h2>
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<td class="memname">int main </td>
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<p>Main function. </p>
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<dl class="section return"><dt>Returns</dt><dd>0 on exit </dd></dl>
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<div class="fragment"><div class="line"><span class="lineno"> 138</span> {</div>
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<div class="line"><span class="lineno"> 139</span> <a class="code hl_function" href="#aa8dca7b867074164d5f45b0f3851269d">test</a>(); <span class="comment">// run self-test implementations</span></div>
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<div class="line"><span class="lineno"> 140</span> <span class="keywordflow">return</span> 0;</div>
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<div class="line"><span class="lineno"> 141</span>}</div>
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<div class="ttc" id="aground__to__ground__projectile__motion_8cpp_html_aa8dca7b867074164d5f45b0f3851269d"><div class="ttname"><a href="#aa8dca7b867074164d5f45b0f3851269d">test</a></div><div class="ttdeci">static void test()</div><div class="ttdoc">Self-test implementations.</div><div class="ttdef"><b>Definition</b> ground_to_ground_projectile_motion.cpp:83</div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#aa554429def63077ab7a550c0affbfefa">◆ </a></span>max_height()</h2>
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<td class="memname">T physics::ground_to_ground_projectile_motion::max_height </td>
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<td class="paramtype">T</td> <td class="paramname"><span class="paramname"><em>initial_velocity</em></span>, </td>
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<td class="paramtype">T</td> <td class="paramname"><span class="paramname"><em>angle</em></span>, </td>
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<td class="paramtype">double</td> <td class="paramname"><span class="paramname"><em>gravity</em></span><span class="paramdefsep"> = </span><span class="paramdefval">9.81</span> )</td>
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<p>Calculate the max height of the projectile. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">initial_velocity</td><td>The starting velocity of the projectile </td></tr>
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<tr><td class="paramname">angle</td><td>The angle that the projectile is launched at in degrees </td></tr>
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<tr><td class="paramname">gravity</td><td>The value used for the gravity constant </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>The max height that the projectile reaches </dd></dl>
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<div class="fragment"><div class="line"><span class="lineno"> 72</span> {</div>
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<div class="line"><span class="lineno"> 73</span> <span class="keywordtype">double</span> Viy = initial_velocity * (<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/math/sin.html">std::sin</a>(<a class="code hl_function" href="#ab00e9785fb2670f7af99d6f3d636f87c">degrees_to_radians</a>(angle))); <span class="comment">// calculate y component of the initial velocity</span></div>
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<div class="line"><span class="lineno"> 74</span> <span class="keywordflow">return</span> (<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/math/pow.html">std::pow</a>(Viy, 2) / (2.0 * gravity));</div>
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<div class="line"><span class="lineno"> 75</span>}</div>
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<div class="ttc" id="apow_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/numeric/math/pow.html">std::pow</a></div><div class="ttdeci">T pow(T... args)</div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#aa8dca7b867074164d5f45b0f3851269d">◆ </a></span>test()</h2>
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<p>Self-test implementations. </p>
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<dl class="section return"><dt>Returns</dt><dd>void </dd></dl>
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<div class="fragment"><div class="line"><span class="lineno"> 83</span> {</div>
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<div class="line"><span class="lineno"> 84</span> <span class="comment">// initial input variables</span></div>
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<div class="line"><span class="lineno"> 85</span> <span class="keywordtype">double</span> initial_velocity = 5.0; <span class="comment">// double initial_velocity input</span></div>
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<div class="line"><span class="lineno"> 86</span> <span class="keywordtype">double</span> angle = 40.0; <span class="comment">// double angle input</span></div>
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<div class="line"><span class="lineno"> 87</span> </div>
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<div class="line"><span class="lineno"> 88</span> <span class="comment">// 1st test</span></div>
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<div class="line"><span class="lineno"> 89</span> <span class="keywordtype">double</span> expected_time_of_flight = 0.655; <span class="comment">// expected time output</span></div>
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<div class="line"><span class="lineno"> 90</span> <span class="keywordtype">double</span> flight_time_output =</div>
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<div class="line"><span class="lineno"> 91</span> <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/math/round.html">std::round</a>(physics::ground_to_ground_projectile_motion::time_of_flight(initial_velocity, angle) * 1000.0) /</div>
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<div class="line"><span class="lineno"> 92</span> 1000.0; <span class="comment">// round output to 3 decimal places</span></div>
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<div class="line"><span class="lineno"> 93</span> </div>
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<div class="line"><span class="lineno"> 94</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Projectile Flight Time (double)"</span> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
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<div class="line"><span class="lineno"> 95</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Input Initial Velocity: "</span> << initial_velocity << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
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<div class="line"><span class="lineno"> 96</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Input Angle: "</span> << angle << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
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<div class="line"><span class="lineno"> 97</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Expected Output: "</span> << expected_time_of_flight << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
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<div class="line"><span class="lineno"> 98</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Output: "</span> << flight_time_output << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
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<div class="line"><span class="lineno"> 99</span> assert(flight_time_output == expected_time_of_flight);</div>
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<div class="line"><span class="lineno"> 100</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"TEST PASSED"</span> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
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<div class="line"><span class="lineno"> 101</span> </div>
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<div class="line"><span class="lineno"> 102</span> <span class="comment">// 2nd test</span></div>
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<div class="line"><span class="lineno"> 103</span> <span class="keywordtype">double</span> expected_horizontal_range = 2.51; <span class="comment">// expected range output</span></div>
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<div class="line"><span class="lineno"> 104</span> <span class="keywordtype">double</span> horizontal_range_output =</div>
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<div class="line"><span class="lineno"> 105</span> <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/math/round.html">std::round</a>(physics::ground_to_ground_projectile_motion::horizontal_range(initial_velocity, angle,</div>
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<div class="line"><span class="lineno"> 106</span> flight_time_output) *</div>
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<div class="line"><span class="lineno"> 107</span> 100.0) /</div>
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<div class="line"><span class="lineno"> 108</span> 100.0; <span class="comment">// round output to 2 decimal places</span></div>
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<div class="line"><span class="lineno"> 109</span> </div>
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<div class="line"><span class="lineno"> 110</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Projectile Horizontal Range (double)"</span> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
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<div class="line"><span class="lineno"> 111</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Input Initial Velocity: "</span> << initial_velocity << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
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<div class="line"><span class="lineno"> 112</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Input Angle: "</span> << angle << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
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<div class="line"><span class="lineno"> 113</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Input Time Of Flight: "</span> << flight_time_output << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
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<div class="line"><span class="lineno"> 114</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Expected Output: "</span> << expected_horizontal_range << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
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<div class="line"><span class="lineno"> 115</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Output: "</span> << horizontal_range_output << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
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<div class="line"><span class="lineno"> 116</span> assert(horizontal_range_output == expected_horizontal_range);</div>
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<div class="line"><span class="lineno"> 117</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"TEST PASSED"</span> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
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<div class="line"><span class="lineno"> 118</span> </div>
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<div class="line"><span class="lineno"> 119</span> <span class="comment">// 3rd test</span></div>
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<div class="line"><span class="lineno"> 120</span> <span class="keywordtype">double</span> expected_max_height = 0.526; <span class="comment">// expected height output</span></div>
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<div class="line"><span class="lineno"> 121</span> <span class="keywordtype">double</span> max_height_output =</div>
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<div class="line"><span class="lineno"> 122</span> <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/math/round.html">std::round</a>(physics::ground_to_ground_projectile_motion::max_height(initial_velocity, angle) * 1000.0) /</div>
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<div class="line"><span class="lineno"> 123</span> 1000.0; <span class="comment">// round output to 3 decimal places</span></div>
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<div class="line"><span class="lineno"> 124</span> </div>
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<div class="line"><span class="lineno"> 125</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Projectile Max Height (double)"</span> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
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<div class="line"><span class="lineno"> 126</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Input Initial Velocity: "</span> << initial_velocity << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
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<div class="line"><span class="lineno"> 127</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Input Angle: "</span> << angle << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
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<div class="line"><span class="lineno"> 128</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Expected Output: "</span> << expected_max_height << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
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<div class="line"><span class="lineno"> 129</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Output: "</span> << max_height_output << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
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<div class="line"><span class="lineno"> 130</span> assert(max_height_output == expected_max_height);</div>
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<div class="line"><span class="lineno"> 131</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"TEST PASSED"</span> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
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<div class="line"><span class="lineno"> 132</span>}</div>
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<div class="ttc" id="around_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/numeric/math/round.html">std::round</a></div><div class="ttdeci">T round(T... args)</div></div>
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<div class="center"><iframe scrolling="no" frameborder="0" src="../../d9/d29/ground__to__ground__projectile__motion_8cpp_aa8dca7b867074164d5f45b0f3851269d_cgraph.svg" width="182" height="86"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe></div>
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<h2 class="memtitle"><span class="permalink"><a href="#a563e066975fed1b84750a0a47c3cbb37">◆ </a></span>time_of_flight()</h2>
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<td class="memname">T physics::ground_to_ground_projectile_motion::time_of_flight </td>
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<td>(</td>
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<td class="paramtype">T</td> <td class="paramname"><span class="paramname"><em>initial_velocity</em></span>, </td>
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<p>Calculate the time of flight. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">initial_velocity</td><td>The starting velocity of the projectile </td></tr>
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<tr><td class="paramname">angle</td><td>The angle that the projectile is launched at in degrees </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>The time that the projectile is in the air for </dd></dl>
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<div class="fragment"><div class="line"><span class="lineno"> 47</span> {</div>
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<div class="line"><span class="lineno"> 48</span> <span class="keywordtype">double</span> Viy = initial_velocity * (<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/math/sin.html">std::sin</a>(<a class="code hl_function" href="#ab00e9785fb2670f7af99d6f3d636f87c">degrees_to_radians</a>(angle))); <span class="comment">// calculate y component of the initial velocity</span></div>
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<div class="line"><span class="lineno"> 49</span> <span class="keywordflow">return</span> 2.0 * Viy / gravity;</div>
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<div class="line"><span class="lineno"> 50</span>}</div>
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