what is sqrt(...) ? which library does it comes from ? how do I use it ? whatfor ?

sqrt() is the square root function. It''s either in math.h or stdlib.h (can''t remember which).

You can use it for anything you''d need a square root for. Of course, it''s pretty slow. If you need it in a speedy way, you could think about lookup tables.

I am french and I don''t understand Square root ... Could you give me an example




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(Example)

5 * 5 = 25
sqrt(25) = 5

"Square root" = Ö

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kieren_j

The square root of a number a is a number b such that when multiplied b is multiplied by itself a is the result.

If b * b = a then b is a square root of a.

Ooooh Yeah

Thank you very much, hey, that look awesome