Re: How to do Algebraic Mode in PS like the HP does?

From	Herbert Voss <Herbert.Voss@alumni.tu-berlin.de>
Newsgroups	comp.lang.postscript
Subject	Re: How to do Algebraic Mode in PS like the HP does?
Date	2012-09-30 22:40 +0200
Organization	Freie Universitaet Berlin
Message-ID	<acrp23F8b8jU1@mid.uni-berlin.de> (permalink)
References	(2 earlier) <k0b0js$nqu$1@reader1.panix.com> <ef3f384c-2a6e-4850-8286-7d75b4b63179@googlegroups.com> <k3ou4d$c8i$1@reader1.panix.com> <k45r3i$5ki$1@dont-email.me> <k48n03$98q$1@dont-email.me>

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Am 30.09.2012 07:57, schrieb luser.droog:

>> Here's a first draft. Converts a string containing
>> an infix expression involving "*_+-" to a string
>> containing the postfix equivalent.
>>
>> To actually produce PS output, we'll need to expand the
>> payload in the /oper dict and pre-scan the string to
>> count operators so the size of the output string can
>> be calculated.
>>
>
> A little more searching led me to this:
> http://devmaster.net/posts/2866/processing-arithmetic-expressions-with-the-shunting-yard-algorithm
>
> Looks very promising.

we have an algparser for PSTricks 
(http://texnik.dante.de/dvips/pstricks/pst-algparser.pro:

%!ps
(pst-algparser.pro) run
/F@pstplot ( (a*(3^sqrt(5)-4)+ln(3+4*x)) ) tx@AlgToPs begin AlgToPs end cvx
==

has the output

{tx@AddMathFunc begin a 3.0 5.0 sqrt exp 4.0 sub mul 3.0 4.0 x mul add 
ln add end}

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  Re: Is it possible to replace 1 custom character in a font?? luser- -droog <mijoryx@yahoo.com> - 2012-07-16 20:51 -0700
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      Re: Is it possible to replace 1 custom character in a font?? luser- -droog <mijoryx@yahoo.com> - 2012-08-16 03:09 -0700
        Re: Is it possible to replace 1 custom character in a font?? dkcombs@panix.com (David Combs) - 2012-09-24 06:21 +0000
          How to do Algebraic Mode in PS like the HP does? "luser.droog" <luser.droog@gmail.com> - 2012-09-28 22:48 -0500
            Re: How to do Algebraic Mode in PS like the HP does? "luser.droog" <luser.droog@gmail.com> - 2012-09-30 00:57 -0500
              Re: How to do Algebraic Mode in PS like the HP does? Herbert Voss <Herbert.Voss@alumni.tu-berlin.de> - 2012-09-30 22:40 +0200
                Re: How to do Algebraic Mode in PS like the HP does? "luser.droog" <luser.droog@gmail.com> - 2012-10-02 12:32 -0500
              Re: How to do Algebraic Mode in PS like the HP does? "luser.droog" <luser.droog@gmail.com> - 2012-10-13 01:40 -0500
                Re: How to do Algebraic Mode in PS like the HP does? "luser.droog" <luser.droog@gmail.com> - 2012-10-14 00:51 -0500
                Re: How to do Algebraic Mode in PS like the HP does? "luser.droog" <luser.droog@gmail.com> - 2012-10-14 04:43 -0500
  Re: Is it possible to replace 1 custom character in a font?? SaGS <sags5495@gmail.com> - 2012-08-13 20:04 -0700
  Re: Is it possible to replace 1 custom character in a font?? John Deubert <john@acumentraining.com> - 2012-08-21 06:48 -0700
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