Thread View: borland.public.delphi.vcl.components.using.general
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5 total messages
Started by Tomas
Tue, 10 Jun 2008 11:38
Delphi formula parser/interpret
Author: Tomas
Date: Tue, 10 Jun 2008 11:38
Date: Tue, 10 Jun 2008 11:38
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Hello, I am searching for Delphi component/library which could do math formula parsing and calculation. For example I have formula below in string format(entered by user in edit box) and I need to calculate answer. Any suggestion? answer := (10 * 1.25) + 273.15 Regards, Tomas
Re: Delphi formula parser/interpret
Author: yannis
Date: Tue, 10 Jun 2008 12:25
Date: Tue, 10 Jun 2008 12:25
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Tomas wrote: > Hello, > > I am searching for Delphi component/library which could do math > formula parsing and calculation. http://www.efg2.com/Lab/Library/Delphi/MathFunctions/Parsers.htm --
Re: Delphi formula parser/interpret
Author: Horst Reichert
Date: Wed, 11 Jun 2008 07:15
Date: Wed, 11 Jun 2008 07:15
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Not free, but does a lot more: http://www.rt-science.com/tools2d.html See the NonLinear Regression Expression Property for entering Formula. Each Caption in the components can also include automatically updated formula. Regards Horst
Re: Delphi formula parser/interpret
Author: SοΏ½rgio Alexandre
Date: Wed, 18 Jun 2008 18:04
Date: Wed, 18 Jun 2008 18:04
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You can use some 3rd party tools, like fastscript, or, create your own parser (isn't that hard), or, use iactivescript interfaces and instance a vbscript/jscript parser... Currently, i'm use JavaScript using IActiveScript for all my formulas... but i have my own parser that can compile and run formulas and small scripts.... "Tomas" <tomas@nomeil.com> escreveu na mensagem news:484e67eb$1@newsgroups.borland.com... > Hello, > > I am searching for Delphi component/library which could do math formula > parsing and calculation. > For example I have formula below in string format(entered by user in edit > box) and I need to calculate answer. Any suggestion? > > answer := (10 * 1.25) + 273.15 > > Regards, > Tomas >
Re: Delphi formula parser/interpret
Author: Sasa Zeman
Date: Thu, 19 Jun 2008 14:44
Date: Thu, 19 Jun 2008 14:44
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Tomas wrote: > answer := (10 * 1.25) + 273.15 This is easy task you can make yourselves using RPN (Reverse Polish Notation). There is large number of free units with correct RPN implementation.
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