C <math.h> - exp2() Function
The C <math.h> exp2() function returns 2 raised to the power of specified number, i.e., 2x.
Syntax
double exp2 (double x); float exp2f (float x); long double exp2l (long double x);
Parameters
x |
Specify the exponent of 2. |
Return Value
Returns 2 raised to the power of specified number, i.e., 2x.
Example:
In the example below, exp2() function is used to calculate 2 raised to the power of specified number.
#include <stdio.h>
#include <math.h>
int main (){
printf("%lf\n", exp2(2));
printf("%lf\n", exp2(-2));
printf("%lf\n", exp2(1.5));
printf("%lf\n", exp2(-1.5));
return 0;
}
The output of the above code will be:
4.000000 0.250000 2.828427 0.353553
❮ C <math.h> Library
