major corrections in the files - bad CPPLINT and non-compilable codes

computer_oriented_statistical_methods/newton_raphson_method.cpp

@@ -0,0 +1,41 @@
+#include <cmath>
+#include <iostream>
+
+float eq(float i) {
+    return (std::pow(i, 3) - (4 * i) - 9);  // original equation
+}
+float eq_der(float i) {
+    return ((3 * std::pow(i, 2)) - 4);  // derivative of equation
+}
+
+int main() {
+    float a, b, z, c, m, n;
+
+    for (int i = 0; i < 100; i++) {
+        z = eq(i);
+        if (z >= 0) {
+            b = i;
+            a = --i;
+            break;
+        }
+    }
+
+    std::cout << "\nFirst initial: " << a;
+    std::cout << "\nSecond initial: " << b;
+    c = (a + b) / 2;
+
+    for (int i = 0; i < 100; i++) {
+        float h;
+        m = eq(c);
+        n = eq_der(c);
+
+        z = c - (m / n);
+        c = z;
+
+        if (m > 0 && m < 0.009)  // stoping criteria
+            break;
+    }
+
+    std::cout << "\n\nRoot: " << z << std::endl;
+    return 0;
+}