| Lets you use the results of one expression inside another expression. | 
| Syntax: | ExpCalc (expression specification) | 
| Parameters: | expression specification – the expression number to execute represented by the EXP literal, such as '2'EXP as a pointer to the second function in the expression list of the current task. | 
| Returns: | The evaluation value of the specified expression. | 
| Examples: | 
ExpCalc('2'EXP) executes expression #2.
If expression number 4 contains “A>B and G>10 or F” and you need to use the same expression but with ‘NOT’ added to it, you can enter it as follows: NOT (ExpCalc('4'EXP))  
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| Note: | The expression specification may be one of the following: | 
| See also: | How Do I Reuse Expressions Within Another Expression? The Online and Rich Client Samples projects (program EX01 and REX01) |