Hi,
I think the formatting may be different inside a function assignment. This is
what I get when I use the following syntax:
$function = "$numer/$denom [pi +
\sum_{n=1}^{\infty}($sum_numer/($sum_denom_n_coeff n -
$sum_denom_const))*sin($w nt)]";
[cid:image001.png@01D26D8C.EA9DB9E0]
Did I mess up the syntax?
Gene L. Harding, PE
Associate Professor of ECET
574-520-4190
Purdue University-South Bend
-----Original Message-----
From: lon-capa-users-boun...@mail.lon-capa.org
[mailto:lon-capa-users-boun...@mail.lon-capa.org] On Behalf Of Gerd Kortemeyer
Sent: Friday, January 13, 2017 10:39 AM
To: Discussion list for LON-CAPA users <lon-capa-users@mail.lon-capa.org>
Subject: Re: [LON-CAPA-users] Algebra Expression Rendering in LON-CAPA
Hi,
It’s \sum
as in
\sum_{n=1}^{\infty}
- Gerd.
> On Jan 13, 2017, at 10:29 AM, Harding, Gene L
> <glhar...@purdue.edu<mailto:glhar...@purdue.edu>> wrote:
>
> Hi,
>
> I am having trouble rendering an algebraic expression with a summation sign
> (capital Sigma). I want an expression that looks like this, using variables
> for the numeric portions of the expression:
> <image003.jpg>
> I am able to render the integration sign using this code:
> $function = "$numer/$denom [pi + int($sum_numer/($sum_denom_n_coeff n
> - $sum_denom_const),1,3)*sin($w nt)]"; …providing an expression that looks
> like this:
> <image004.png>
>
> But when I try to render the summation sign using this code:
> $function = "$numer/$denom [pi + sum($sum_numer/($sum_denom_n_coeff n
> - $sum_denom_const),n,1,3)*sin($w nt)]"; …I get the following:
> <image005.png>
>
> I have spent a couple of hours looking through the Maxima Manual and other
> references, as well as some examples I have found online, but have not been
> able to figure out the syntax for rendering the summation sign. Can anyone
> offer advice on how to do this?
>
> Also, although not so important, if someone can tell me how to replace the
> outer parentheses with square brackets, and/or how to display the numeric
> part of the sine argument with commas (e.g., 90,000 vs 90000), I would really
> appreciate it.
>
> Thanks,
>
> Gene L. Harding, PE
> Associate Professor of ECET
> 574-520-4190
> Purdue University-South Bend
>
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--
Gerd Kortemeyer, Ph.D.
Associate Professor of Physics
Director, LON-CAPA Project
Michigan State University
http://www.msu.edu/user/kortemey/
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