Thanks Damien--that worked nicely! And thanks to everyone who responded with help. I should have posed these questions to the list earlier...would have saved me a lot of time!
Best regards, 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 Damien Guillaume Sent: Tuesday, January 17, 2017 3:57 PM 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 > Thanks Damien! That is very helpful. Is there an easy way to display > the large numbers with commas (e.g., 32000 -> 32,000)? I tried a > couple of different format commands using ",0f", but neither worked. > Also, is there a good reference out there to help novices like me with > the syntax for these commands? I'm having a hard time keeping the xml, > perl, tex, etc. straight. (And have wasted a LOT of time trying to > figure it out.) You are not the only one. Currently your best help for LON-CAPA specific syntax is the author manual at /adm/help/author.manual.pdf . For XML, Perl and TeX, you will have to look at other documentations on the web. I found that &prettyprint (which is mentionned in the author manual) works for me to get commas, for instance: <m eval="on" display="mathjax">$$ \frac{$numer}{$denom} \left[ \pi + \sum_{n=1}^{\infty} \frac{$sum_numer}{$sum_denom_n_coeff n - $sum_denom_const} \cdot \sin(&prettyprint($w,',0f') nt) \right] $$</m> It also works when you call it within a Perl script, for instance: <script type="loncapa/perl"> ... $pretty_w = &prettyprint($w,', 0f'); $function= "\\frac{$numer}{$denom} \\left[ \\pi + \\sum_{n=1}^{\\infty} \\frac{$sum_numer}{$sum_denom_n_coeff n - $sum_denom_const} \\cdot \\sin($pretty_w nt) \\right]"; </script> <m eval="on" display="mathjax">$$ $function $$</m> Damien PS: I meant 'eval="on"' instead of 'eval="true"' in my previous email. _______________________________________________ LON-CAPA-users mailing list LON-CAPA-users@mail.lon-capa.org http://mail.lon-capa.org/mailman/listinfo/lon-capa-users _______________________________________________ LON-CAPA-users mailing list LON-CAPA-users@mail.lon-capa.org http://mail.lon-capa.org/mailman/listinfo/lon-capa-users
