sqrt

#sqrt

##Syntax sqrt ( r : real ) : real

##Description The sqrt function is used to find the square root of a number. For example, sqrt (4) is 2.

##Example This program prints out the square roots of 1, 2, 3, � up to 100.

    for i : 1 .. 100
        put "Square root of ", i, " is ", sqrt ( i )
    end for

##Details It is illegal to try to take the square root of a negative number. The result of sqrt is always positive or zero.

The opposite of a square root is the square. For example, the square of x is written is x**2.

##See also See also predefined unit mathmodule.html.