TCompare Type

Summary

Defines comparison type for the Equal function.

Declaration

TCompare = (cmpAbsolute, cmpRelative);

Value	Description
cmpAbsolute	a and b are equal, if the following expression is true: abs(a-b) < Tolerance.
cmpRelative	a and b are equal, if the following expression is true: abs(a-b)/Max( abs(a),abs(b) ) <= Tolerance This method also requires a special "zero tolerance" parameter, which determines how small must a number be so that it can be considered to be zero.

Value

Description

cmpAbsolute

a and b are equal, if the following expression is true:


    abs(a-b) < Tolerance.

cmpRelative

a and b are equal, if the following expression is true:


    abs(a-b)/Max( abs(a),abs(b) ) <= Tolerance

This method also requires a special "zero tolerance" parameter, which determines how small must a number be so that it can be considered to be zero.

Description

Determines the method used to compare two floating point numbers in order to determine if they are equal or not within some tolerance.