Distance Formula

Write a function to compute the distance between two points. Given two points (x1, y1) and (x2, y2), the distance between these points is given by the formula:

the distance formula

You must name the function distance, and it must return a double giving the distance between the two points.

Files Needed

(Do not re-type this program. Simply download a copy of the file by right-clicking and choosing "Save link as..." from the context menu. Save it into your normal code folder.)

If you fill in the missing code correctly, your output should like this:

 (-2,1) to (1,5) => 5.0
 (-2,-3) to (-4,4) => 7.280109889280518
 (2,-3) to (-1,-2) => 3.1622776601683795
 (4,5) to (4,5) => 0.0

©2013–2015 Graham Mitchell

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