Pythagorean Theorem

When you're dealing with right-angled triangles, trigonometry is not required to calculate the length of the hypotenuse. Our PHP programmers friends have a function called hypot() which solves for c in the equation: a^2 + b^2 = c^2

1. function hypot(a, b)
2.     hypot = sqr(a^2 + b^2)
3. end function

Using the classic 3-4-5 triangle as an example, for a = 3 and b = 4, the function will return 5.

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