Returns the positive square root of a numeric expression.
# = Sqr(x)
# = Sqrt(x)
x:aexp
Sqr and Sqrt are synonyms and calculate the square root of x.
OpenW # 1
Print Sqrt(16) // prints 4
Print Sqr(PI * 5.3 + 1) // prints 4.20124...
If the function argument x is less than 0, Sqr(x) reports an error.
{Created by Sjouke Hamstra; Last updated: 23/10/2014 by James Gaite}