C Math sqrt() Function
Example
Return the square root of different numbers:
printf("%f", sqrt(0));
printf("%f", sqrt(1));
printf("%f", sqrt(9));
printf("%f", sqrt(0.64));
printf("%f", sqrt(-25));
Definition and Usage
The sqrt() function returns the square root of a number.
The sqrt() function is defined in the <math.h> header file.
Syntax
One of the following:
sqrt(double number);Parameter Values
| Parameter | Description |
|---|---|
| number | Required. Specifies a number. |
Technical Details
| Returns: | A double value representing the square root of a
number. |
|---|