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C library function - sin()
Description
The C library function double sin(double x) returns the sine of a radian angle x.
Declaration
Following is the declaration for sin() function.
double sin(double x)
Parameters
x − This is the floating point value representing an angle expressed in radians.
Return Value
This function returns sine of x.
Example
The following example shows the usage of sin() function.
#include <stdio.h> #include <math.h> #define PI 3.14159265 int main () { double x, ret, val; x = 45.0; val = PI / 180; ret = sin(x*val); printf("The sine of %lf is %lf degrees", x, ret); return(0); }
Let us compile and run the above program to produce the following result −
The sine of 45.000000 degrees is 0.707107
math_h.htm
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