1. matheval update
I've uploaded matheval 1.5 to my web page and sent a copy to Rob. It's
mainly what was in EuSQL v0.74, but with several bug fixes, improvements to
its symbolic manipulations and much upgraded documentation, including info
on how to extend the lib with your own math libs.
Link to matheval:
http://www14.brinkster.com/matthewlewis/matheval.zip
Matheval docs on-line:
http://www14.brinkster.com/matthewlewis/matheval.htm
All my projects:
http://www14.brinkster.com/matthewlewis/projects.html
Matt Lewis
2. Re: matheval update
- Posted by gertie at visionsix.com
Jun 12, 2003
On 12 Jun 2003, at 14:57, Matt Lewis wrote:
>
>
> I've uploaded matheval 1.5 to my web page and sent a copy to Rob. It's
> mainly what was in EuSQL v0.74, but with several bug fixes, improvements to
> its
> symbolic manipulations and much upgraded documentation, including info on how
> to
> extend the lib with your own math libs.
>
> Link to matheval:
> http://www14.brinkster.com/matthewlewis/matheval.zip
>
> Matheval docs on-line:
> http://www14.brinkster.com/matthewlewis/matheval.htm
Why does GreaterOrEqual return zero if one of the args is data? When using
fuxxy logic, if these are bytebool, this function will always return zero if the
values
are above 2?
Kat
3. Re: matheval update
Hi Matt, you wrote:
> I've uploaded matheval 1.5 to my web page and sent a copy to Rob. It's
> mainly what was in EuSQL v0.74, but with several bug fixes, improvements to
> its symbolic manipulations and much upgraded documentation, including info
> on how to extend the lib with your own math libs.
>
> Link to matheval:
> http://www14.brinkster.com/matthewlewis/matheval.zip
<snip>
Very nice, I'm much interested in this project.
When I run 'mathdemo.ex', I got the following error message:
C:\TEMP\matheval.e:143
resolve_math_ref has not been declared
id = resolve_math_ref( ref )
^
Also, I don't understand some parts of the documentation, for instance:
<quote>
[const]
Floor
{ FLOOR, ARG1, { } }
Returns: Greatest integer less than ARG1.
<unquote>
How can a constant return something?
<quote>
[func]
Simplify
Returns: Algebraically simplified matheval sequence.
<unquote>
What arguments does 'Simplify' take, and what exactly is a 'matheval
sequence'?
I like math, but it's dry stuff. So I think it would be nice, if there
were some examples in the documentation.
Thank you for this library! I believe it's great, but the documentation
is somewhat confusing for me, so I think I can't really see it's full
potential. That's just me, of course.
Best regards,
Juergen
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