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Start your free trialTomasz Necek
Courses Plus Student 7,028 PointsWhy it's "double" sqrt ?
Why there is Math.sqrt AND Math.pow ?? The formula is : (x2-x1)squared + (y2-y1)squared . So shouldn'e there be only math.pow ? Math.pow(x-x,2)+ Math.pow(y-y,2) ???
2 Answers
Steven Parker
231,198 PointsThe last step of the Pythagoras theorem is the square root.
Check out what Google itself says or any of the pages it will show links to.
Padraic Histon
8,460 PointsThe formula is to get the square root(Math.Sqrt) of xDiffSquared(Math.Pow(X-x, 2)) + yDiffSquared(Math.Pow(Y-y, 2)) so you will need to use both. Hope this helps.