atan
Arc tangent function of one variable
Interface
#include <math.h>
double | atan (double x) |
long | atanl (long double x) |
float | atanf (float x) |
#include <complex.h>
complex | atan (complex x) |
double complex | catan (double complex x) |
float complex | catanf (float complex x) |
long double complex | catanl (long double complex x) |
Description
The atan function computes the principal value of the arc tangent of x, returning a value in the rangeExample:
Example - Arc tangent function of one variable
Workings
#include <stdio.h> #include <math.h> int main(void) { double result, x = 0.6325; result = atan(x); printf("The arc sin of %lf is %lf\n", x, result); }
Solution
Output:
The arc sin of 0.632500 is 0.563974
Compatibility
DOS | UNIX | Windows | ANSI C | C++ only | |
---|---|---|---|---|---|
atanl | • | • | |||
Real atan | • | • | • | • | |
Complex atan | • | • | • | ||
Complex catan | • | • |
Last Modified: 22 Feb 12 @ 22:42 Page Rendered: 2022-03-14 16:03:57