Topic       : The GFA-Basic Compendium
Author      : GFA Systemtechnik GmbH
Version     : GFABasic.HYP v2.98 (12/31/2023)
Subject     : Documentation/Programming
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Index Size  : 28056
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View Ref-Filex==y

x, y: aexp

The operator '==' compares two numerical expressions for approximate equality.
With this operator only eight and one half decimal places (28 bits of the
mantissas of floating-point numbers) are compared. '==' is useful for comparing
floating-point numbers, where inaccuracies due to rounding can occur.

Examples:

    PRINT 1.0000000001=1
    PRINT 1.0000000001==1

--> The numbers 0 and -1 are displayed.

    a=SINQ(77)     !SINQ() (degrees) is a quick, less accurate SIN() function
    b=SIN(RAD(77)) !RAD() converts from degrees to radians
    PRINT a=b
    PRINT a==b

--> The numbers 0 (logically FALSE) and -1 (TRUE) appear.