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<div class="headertitle"><div class="title">kelvin_to_celsius.cpp</div></div>
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<div class="contents">
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<a href="../../db/d6b/kelvin__to__celsius_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span></div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> </div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#include <cassert></span> </div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#include <cmath></span> </div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#include <iostream></span> </div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span></div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="keyword">namespace </span><a class="code hl_namespace" href="../../d0/d6f/namespaceothers.html">others</a> {</div>
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<div class="foldopen" id="foldopen00040" data-start="{" data-end="}">
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"><a class="line" href="../../d0/d6f/namespaceothers.html#aa17dc6d061dff34f6b9a610bc5e26703"> 40</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="../../d0/d6f/namespaceothers.html#aa17dc6d061dff34f6b9a610bc5e26703">are_almost_equal</a>(<span class="keywordtype">double</span> a, <span class="keywordtype">double</span> b, <span class="keywordtype">double</span> absolute_tolerance = 0.0001) {</div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> <span class="keywordflow">return</span> std::abs(a - b) < absolute_tolerance;</div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span>}</div>
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</div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span></div>
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<div class="foldopen" id="foldopen00049" data-start="{" data-end="}">
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"><a class="line" href="../../d0/d6f/namespaceothers.html#a48677fae5d683070432b1a905722d9ec"> 49</a></span><span class="keywordtype">double</span> <a class="code hl_function" href="../../d0/d6f/namespaceothers.html#a48677fae5d683070432b1a905722d9ec">kelvin_to_celsius</a>(<span class="keywordtype">double</span> temperature_in_k) {</div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <span class="keyword">const</span> <span class="keywordtype">double</span> absolute_zero_in_c = -273.15;</div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="keywordflow">if</span> (temperature_in_k < absolute_zero_in_c) {</div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"input temperature below absolute zero"</span>);</div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> }</div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <span class="keywordflow">return</span> temperature_in_k + absolute_zero_in_c;</div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span>}</div>
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</div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span>} <span class="comment">// namespace others</span></div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span></div>
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<div class="foldopen" id="foldopen00062" data-start="{" data-end="}">
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"><a class="line" href="../../db/d6b/kelvin__to__celsius_8cpp.html#a483bb8ccf42aaf7375a83e91490eda1e"> 62</a></span><span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code hl_function" href="../../db/d6b/kelvin__to__celsius_8cpp.html#a483bb8ccf42aaf7375a83e91490eda1e">tests</a>() {</div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> assert(<a class="code hl_function" href="../../d0/d6f/namespaceothers.html#aa17dc6d061dff34f6b9a610bc5e26703">others::are_almost_equal</a>(<a class="code hl_function" href="../../d0/d6f/namespaceothers.html#a48677fae5d683070432b1a905722d9ec">others::kelvin_to_celsius</a>(230), -43.15));</div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> assert(<a class="code hl_function" href="../../d0/d6f/namespaceothers.html#aa17dc6d061dff34f6b9a610bc5e26703">others::are_almost_equal</a>(<a class="code hl_function" href="../../d0/d6f/namespaceothers.html#a48677fae5d683070432b1a905722d9ec">others::kelvin_to_celsius</a>(512), 238.85));</div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> assert(<a class="code hl_function" href="../../d0/d6f/namespaceothers.html#aa17dc6d061dff34f6b9a610bc5e26703">others::are_almost_equal</a>(<a class="code hl_function" href="../../d0/d6f/namespaceothers.html#a48677fae5d683070432b1a905722d9ec">others::kelvin_to_celsius</a>(55), -218.15));</div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> assert(<a class="code hl_function" href="../../d0/d6f/namespaceothers.html#aa17dc6d061dff34f6b9a610bc5e26703">others::are_almost_equal</a>(<a class="code hl_function" href="../../d0/d6f/namespaceothers.html#a48677fae5d683070432b1a905722d9ec">others::kelvin_to_celsius</a>(77), -196.15));</div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> assert(<a class="code hl_function" href="../../d0/d6f/namespaceothers.html#aa17dc6d061dff34f6b9a610bc5e26703">others::are_almost_equal</a>(<a class="code hl_function" href="../../d0/d6f/namespaceothers.html#a48677fae5d683070432b1a905722d9ec">others::kelvin_to_celsius</a>(9.78), -263.37));</div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> assert(<a class="code hl_function" href="../../d0/d6f/namespaceothers.html#aa17dc6d061dff34f6b9a610bc5e26703">others::are_almost_equal</a>(<a class="code hl_function" href="../../d0/d6f/namespaceothers.html#a48677fae5d683070432b1a905722d9ec">others::kelvin_to_celsius</a>(15), -258.15));</div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> assert(<a class="code hl_function" href="../../d0/d6f/namespaceothers.html#aa17dc6d061dff34f6b9a610bc5e26703">others::are_almost_equal</a>(<a class="code hl_function" href="../../d0/d6f/namespaceothers.html#a48677fae5d683070432b1a905722d9ec">others::kelvin_to_celsius</a>(273.15), 0));</div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> </div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> std::cout << <span class="stringliteral">"All tests have successfully passed!\n"</span>;</div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span>}</div>
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</div>
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<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span></div>
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<div class="foldopen" id="foldopen00078" data-start="{" data-end="}">
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"><a class="line" href="../../db/d6b/kelvin__to__celsius_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4"> 78</a></span><span class="keywordtype">int</span> <a class="code hl_function" href="../../db/d6b/kelvin__to__celsius_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a>() {</div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> <a class="code hl_function" href="../../db/d6b/kelvin__to__celsius_8cpp.html#a483bb8ccf42aaf7375a83e91490eda1e">tests</a>(); <span class="comment">// run self-test implementations</span></div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> <span class="keywordflow">return</span> 0;</div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span>}</div>
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</div>
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<div class="ttc" id="akelvin__to__celsius_8cpp_html_a483bb8ccf42aaf7375a83e91490eda1e"><div class="ttname"><a href="../../db/d6b/kelvin__to__celsius_8cpp.html#a483bb8ccf42aaf7375a83e91490eda1e">tests</a></div><div class="ttdeci">static void tests()</div><div class="ttdoc">Self-test implementations.</div><div class="ttdef"><b>Definition</b> <a href="#l00062">kelvin_to_celsius.cpp:62</a></div></div>
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<div class="ttc" id="akelvin__to__celsius_8cpp_html_ae66f6b31b5ad750f1fe042a706a4e3d4"><div class="ttname"><a href="../../db/d6b/kelvin__to__celsius_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a></div><div class="ttdeci">int main()</div><div class="ttdoc">Main function.</div><div class="ttdef"><b>Definition</b> <a href="#l00078">kelvin_to_celsius.cpp:78</a></div></div>
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<div class="ttc" id="anamespaceothers_html"><div class="ttname"><a href="../../d0/d6f/namespaceothers.html">others</a></div><div class="ttdoc">for vector</div></div>
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<div class="ttc" id="anamespaceothers_html_a48677fae5d683070432b1a905722d9ec"><div class="ttname"><a href="../../d0/d6f/namespaceothers.html#a48677fae5d683070432b1a905722d9ec">others::kelvin_to_celsius</a></div><div class="ttdeci">double kelvin_to_celsius(double temperature_in_k)</div><div class="ttdoc">Conversion from Kelvin to Celsius algorithm.</div><div class="ttdef"><b>Definition</b> <a href="#l00049">kelvin_to_celsius.cpp:49</a></div></div>
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<div class="ttc" id="anamespaceothers_html_aa17dc6d061dff34f6b9a610bc5e26703"><div class="ttname"><a href="../../d0/d6f/namespaceothers.html#aa17dc6d061dff34f6b9a610bc5e26703">others::are_almost_equal</a></div><div class="ttdeci">bool are_almost_equal(double a, double b, double absolute_tolerance=0.0001)</div><div class="ttdoc">Compare two floating point numbers with a certain tolerance. This is needed as with some values,...</div><div class="ttdef"><b>Definition</b> <a href="#l00040">kelvin_to_celsius.cpp:40</a></div></div>
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