<VariableDelegate> Protocol Reference

VariableDelegate returns the current value of a variable whose name is given. More...

Inherited by MyVariableDelegate.

Instance Methods
(double)	- getVariableValue:
	Return the value of the variable with the given name.

Detailed Description

VariableDelegate returns the current value of a variable whose name is given.

This is useful for cases where variable values cannot be set before the expression is evaluated because the problem domain may be too big. Using a VariableDelegate that works like a callback, the MathParser can ask for variable values only for those variables that are actually used in the expression. The result is a NSNumber or a NSString.

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The documentation for this protocol was generated from the following file:

• MathParser.h