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Math387.TCompare Enumeration

Comparison type for the Equal function.

Pascal
TCompare = ( cmpAbsolute, cmpRelative );
Members 
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.  

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

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