atan() - Mathematical Function
How is Mathematical Function "atan()" used in C++?
How to find the arc tangent value of an argument using c++?
Explanation
atan() is a Mathematical Function that returns the arc tangent for the given argument.
Syntax to find Arc Tangent Value
float atan ( float arg );
double atan ( double arg );
long double atan ( long double arg );
Example :
#include <iostream.h> #include <cmath.h> int main () { cout << "Arc Tangent value of .5 is :: " << atan(.5) ; return 0; } |
Result :
Arc Tangent value of .5 is :: 0.463648
In the above example atan() is used to find the arc tangent value for ".5".