C <math.h> - sqrt() Function
The C <math.h> sqrt() function returns the square root of the given number.
Syntax
double sqrt (double x); float sqrtf (float x); long double sqrtl (long double x);
Parameters
x |
Specify a positive number. |
Return Value
Returns the square root of the specified number.
If the x is negative, domain error occurs.
Example:
In the example below, sqrt() function is used to find out the square root of the given number.
#include <stdio.h>
#include <math.h>
int main (){
printf("%lf\n", sqrt(25));
printf("%lf\n", sqrt(30));
printf("%lf\n", sqrt(35.5));
printf("%lf\n", sqrt(50));
return 0;
}
The output of the above code will be:
5.000000 5.477226 5.958188 7.071068
❮ C <math.h> Library
