Re: Fastening the run-time interpretation of mathematical expressions

Andreas Kochenburger <akk@privat.de>
13 Nov 2006 16:29:37 -0500

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Fastening the run-time interpretation of mathematical expressions paolopantaleo@gmail.com (PAolo) (2006-11-11)
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Re: Fastening the run-time interpretation of mathematical expressions mailbox@dmitry-kazakov.de (Dmitry A. Kazakov) (2006-11-13)
Re: Fastening the run-time interpretation of mathematical expressions akk@privat.de (Andreas Kochenburger) (2006-11-13)
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Re: Fastening the run-time interpretation of mathematical expressions idknow@gmail.com (idknow@gmail.com) (2006-11-15)
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From: Andreas Kochenburger <akk@privat.de>
Newsgroups: comp.compilers
Date: 13 Nov 2006 16:29:37 -0500
Organization: Arcor
References: 06-11-052
Keywords: interpreter, forth

PAolo schrieb:
> I am writing a piece of software that accept in input the definition
> of a mathematical function and a list of points in which evaluate the
> function and puts the result in output. The main feature of the progam
> is that once the function definition is read, the program evaluates
> the function very fast [Well this isn't done already...]. I was
> thinking to build a pair of stacks, one containig the operands
> (floats) and the other containig the operators (function pointers).


Don't reinvent Forth. Have also look at Noble's Formula Translator:
http://galileo.phys.virginia.edu/classes/551.jvn.fall01/programs.htm


Try it with modern fast Forths like SwiftForth, VFX or the free
Win32Forth. Their code efficiency is in the range of Assembler!


Andreas



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