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.)
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 11:29 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 You have to use eval="true" for <m> if you have variables inside. And make sure the display is using MathJax. Try this: <m eval="on" display="mathjax">$$ \frac{$numer}{$denom} \left[ \pi + \sum_{n=1}^{\infty} \frac{$sum_numer}{$sum_denom_n_coeff n - $sum_denom_const} \cdot \sin($w nt) \right] $$</m> If you put the whole expression into a variable, you will also have to escape the "\" with "\\". Damien > Hi Damien, > > > > Thanks for your reply. At least now I know that I was chasing the wind. I was > able to get close by using Sigma in place of sum in the expression, but then > only the "n" was subscripted, not the "=1" part, even though I used braces: > _{n=1}... > > > > I had initially tried to render the equation in the xml portion of the > problem, but when I did that I had a lot of trouble properly displaying some > of the variables using the <m>$...$</m> command. It worked in some places but > not others. > > > > This is as close as I have been able to get to a proper expression: > > [cid:image001.png@01D26DF0.DF719FF0] > > > > In the xml portion I have been able to render it nicely: > > [cid:image002.png@01D26DF6.82F21010] > > ...but only if I hard-code the constants in the two fractions and inside the > sine. Is there a way to display variable values from the perl script in place > of the constants? I have tried a few things, but all were unsuccessful. > > > > Thanks, > > > > Gene L. Harding, PE > > Associate Professor of ECET > > 574-520-4190 > > Purdue University-South Bend _______________________________________________ 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
