Description

The SQRT function returns the mathematical square root of a value. It takes the form:

SQRT(expression)

Where:

expression should evaluate to a positive numeric value as the authors do not want to introduce a complex number type within the language. Negative values will cause a math error.

The function calculates the result at the highest precision available and then truncates the answer to the required PRECISION.  An example of use would be: 

PRECISION 2
CRT SQRT (44)

to display 6.63, which is the square root of 44 to 2 decimal places. 

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