Math.sqrt()
Signature
double sqrt (double a)
Description
Returns the correctly rounded positive square root of a
double value.
Special cases:
If the argument is NaN or less than zero, then the result is NaN.
If the argument is positive infinity, then the result is positive infinity.
If the argument is positive zero or negative zero, then the
result is the same as the argument.
Otherwise, the result is the double value closest to
the true mathematical square root of the argument value.
Parameters
| Name | Type | Description |
|---|
a | double | A value. |
Returns
| Type | Description |
|---|
double | The positive square root of a.
If the argument is NaN or less than zero, the result is NaN. |
Example
String result = String.valueOfDouble (Math.sqrt (16));
Result is: result contains: "4"