problem.evaluateformula
problem.evaluateformula |
Purpose
Evaluate a formula using the current values of the variables
Synopsis
result = problem.evaluateformula (parsed, type, value)
Arguments
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parsed
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integer indicating whether the formula of the item is in internal unparsed format (
Parsed=0) or parsed (reverse Polish) format (
Parsed=1).
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type
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Integer array of token types for the formula.
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value
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Double array of values corresponding to
Type.
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result
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The result of the calculation.
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Example
The following example calculates the value of column 3 divided by column 6.
type = [xp.xslp_op_var, xp.xslp_op_var, xp.xslp_op_op, xp.xslp_op_eof] value = [3, 6, xp.xslp_ifun_divide, 0] value = p.evaluateformula (1, type, value)
Further information
The formula in Type and Value must be terminated by an xslp_op_eof token.
The formula cannot include "complicated" functions, such as user functions which return more than one value.
Related topics