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predefined math functions [message #903978]

Mon, 27 August 2012 13:39

biks triks

Messages: 13
Registered: August 2012

Junior Member

Hello!

Is there any way that I can use mathematical functions (add, sub...) on stored values? If there is, how can I do that? Smile

Thanks!

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Re: predefined math functions [message #904095 is a reply to message #903978]

Mon, 27 August 2012 18:32

Achim Loerke

Messages: 376
Registered: July 2009
Location: Braunschweig, Germany

Senior Member

Im not sure I understand your question. If you have stored your values in variables you can use them by referencing them as $variablename. If that wasn't the problem please elaborate.

- Achim

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Re: predefined math functions [message #904389 is a reply to message #904095]

Tue, 28 August 2012 11:07

biks triks

Messages: 13
Registered: August 2012

Junior Member

Well, I have 3 stored values: store_value_1, store_value_2 and store_value_3.

I need to check whether are store_value_1 + store_value_2 = store_value_3. What Action and Function should I use to calculate that? I've tried with Action "Check string values" (because stored values are decimal). For "Parameter Value 1" I would like to use function such as ?add($store_value_1, $store_value_2), "Action Type" is equals, and "Parameter Value 2" is store_value_3. But that doesn't work... Very Happy

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Re: predefined math functions [message #904518 is a reply to message #904389]

Tue, 28 August 2012 15:28

Alexandra Schladebeck

Messages: 1613
Registered: July 2009

Senior Member

Hi,

Without knowing what doesn't work (or what you expect versus what you receive), it's hard to give a concrete answer. Nevertheless, here's a few pointers:
- Read the documentation on the predefined functions. It explains which format the functions are calculated / processed in
- Bear in mind you may need to use the functions trunc or round to get the numbers you need
- If you're having trouble with more complex functions, then break each part of the function down and check your interim results e.g. by entering the interim value via replace text into a text field. That should help you see where you're going wrong.

HTH,
Alex

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