SQRT function

Returns the square root (as a DECIMAL value) of an expression you specify.

Syntax 

 

SQRT ( expression )

expression

A numeric expression. If the value of the expression is negative, SQRT returns the Unknown value (?).

Example 

This procedure prompts for a number and then displays the square root of that number:

 

r-sqrt.p

DEFINE VARIABLE iNum AS INTEGER NO-UNDO FORMAT ">,>>9" LABEL "Enter a number between 1 and 9,999".   REPEAT WITH SIDE-LABELS CENTERED TITLE "SQUARE ROOT GENERATOR" COLUMN 20 1 DOWN: DISPLAY SKIP(2). SET iNum SKIP(2). DISPLAY "The square root of " + STRING(iNum) + " is" FORMAT "x(27)"     SQRT(num) FORMAT ">>>.9999". END.