SQRT 


sqrt( a )
sqrt "square root"
a a number

The sqrt( a ) function is used to return the square root of the number provided.


For example, let's first square a number, then use sqrt() to reverse it:

--two ways to square a number
a = 4*4   --16
b = 4^2   --16

c = sqrt(b) --square root

print(c)  --4

Official Manual - SQRT

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12 May 2023

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