C atan() Function
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C atan() Function
The atan() function returns the arc-tangent (in radians) of the given number.
This function is defined in <math.h> header file.
Example
C Compiler
#include <stdio.h>
#include <math.h>
int main()
{
printf("%lf", atan(2));
return 0;
}
Output
1.107149
Syntax
atan(data_type x)
Parameter Values
| Value | Type | Explanation |
|---|---|---|
| x | Required | Specifies a number. |
Return Value
| Value | Explanation |
|---|---|
| Number | The arc-tangent of the given number. The return value will be between -π / 2 to π / 2. The return value is represented in radians. |
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