labview, There seems to be a bug in LabVIEW formula functions.

There seems to be a bug in LabVIEW formula functions.

Author	Message
Michir #1 / 2	There seems to be a bug in LabVIEW formula functions. I'm using a combination of "Parse Formula String.vi" and "Eval Parsed Formula String.vi" to calculate user scripts(mathematical expressions) runtime. It doesn't work even for a simple formula like "a=x+x;" which contains a plural of the same variable x in an expression, although it works in such a formula as "a=x^x;". This is very inconvenient and strange. (I know that there exist some differences between labview Formula Nodes and the Advanced Formula Functions.)
Fri, 24 Jun 2005 04:37:23 GMT

Wieb #2 / 2	There seems to be a bug in LabVIEW formula functions. Michiro, Try "x+x-a". LV puts "=0" behind the formula, so "a=x+x" becomes "a=x+x=0". "x+x-a" gives "x+x-a=0". This is the same as "a=x+x". In the "Eval Parsed Formula String.vi", put x in the array of variables, and a value for x in the array of X Values (which has a misplaced name...), e.g. 2. The output is 4, as expected. Regards, Wiebe. Quote: > I'm using a combination of "Parse Formula String.vi" and "Eval Parsed > Formula String.vi" to calculate user scripts(mathematical expressions) > runtime. It doesn't work even for a simple formula like "a=x+x;" which > contains a plural of the same variable x in an expression, although it > works in such a formula as "a=x^x;". This is very inconvenient and > strange. (I know that there exist some differences between LabVIEW > Formula Nodes and the Advanced Formula Functions.)
Fri, 24 Jun 2005 17:45:27 GMT

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