PHP hypot() Function
Example
Calculate the hypotenuse of different right-angle triangles:
<?php
echo hypot(3,4) . "<br>";
echo hypot(4,6) . "<br>";
echo hypot(1,3) . "<br>";
echo sqrt(3*3+4*4);
?>
Try it Yourself »
Definition and Usage
The hypot() function calculates the hypotenuse of a right-angle triangle.
Tip: This function is equivalent to sqrt(x*x + y*y).
Syntax
hypot(x,y);
Parameter Values
| Parameter | Description |
|---|---|
| x | Required. Specifies the length of first side |
| y | Required. Specifies the length of second side |
Technical Details
| Return Value: | The length of the hypotenuse |
|---|---|
| Return Type: | Float |
| PHP Version: | 4.1+ |
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