Le 18 oct. 2016 à 13:06 +0200, Kornel Benko <kor...@lyx.org<mailto:kor...@lyx.org>>, a écrit : Am Dienstag, 18. Oktober 2016 um 10:57:08, schrieb Paola Manzini <pm...@st-andrews.ac.uk<mailto:pm...@st-andrews.ac.uk> On 18 Oct 2016, at 11:39, Kornel Benko <kor...@lyx.org<mailto:kor...@lyx.org><mailto:kor...@lyx.org>> wrote:

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Am Dienstag, 18. Oktober 2016 um 10:12:50, schrieb Paola Manzini <pm...@st-andrews.ac.uk<mailto:pm...@st-andrews.ac.uk><mailto:pm...@st-andrews.ac.uk Hi all, I’ve searched the list and though this is not the first time the problem is noted, I haven’t been able to find any solution. The short of it is: it just won’t work. So for instance if I type “5+2” then invoke Edit/Math/CAS, I only get a lonely = side to the right of the expression, and no result (see screenshot) I am currently running Lyx 2.2.0 on Mac Os Sierra, but I had exactly the same problem under Maverick and El Capitan with previous Lyx versions, namely, nothing happens. I have specified the paths correctly (I think) to where the apps are (Mathematica, Maxima, Maple - nothing seems to work), and I can see the software calling the app (math-extern maxima), or (math-extern mathematica), but no result is churned out. Here is what I have in the "PATH prefix" field under Lyx->Preferences->Paths: /Library/TeX/texbin:/usr/texbin:/sw/bin:/sw/sbin:/opt/local/teTeX/bin:/opt/local/bin:/Library/TeX/local/bin:/Library/TeX/bin:/Library/TeX/X11R6/bin:/Library/TeX/sbin:/sbin:/usr/local/sbin:/Library/TeX/usr/local/bin:/Applications/Mathematica.app/Contents/MacOS/MathKernel:/Applications/Maxima.app:/Applications/Maple 18/Maple 18.app Can anyone please help? Many thanks, Paola [cid:1CA68732-253E-465F-82E6-7DF587AC9DB0@st-andrews.ac.uk] I'd try calling lyx with '-dbg mathed' parameter from a console window. Alternatively use View->Messages Pane->Settings Check 'Selected' Double click on 'mathed - Math editor' back to 'Output' ... calling: maxima input: 'simpsum:true;tex(5 + 2);' output: '7' Buffer.cpp (3449): updateMacro of novýsúbor9.lyx 12:31:27.889: Automatický úklad hotový. Here it shows: 12:38:28.705: Alt+M Afinding 'finding 'finding 'use whole cell: checking expr: '5 + 2' calling: maxima input: 'simpsum:true;tex(5 + 2);' output: '7' Kornel many thanks Kornel for your prompt reply, I’ve tried what you suggested, and what I got is no output, namely: 11:55:08.254: (math-extern maxima)finding 'finding 'finding 'use whole cell: checking expr: '5 + 2' calling: maxima input: 'simpsum:true;tex(5 + 2);’ does this suggest where the problem is? No, missing: output: '7' What happens if you call maxima from the console window and input the string '(5+2);' followed by <Return>? Here I get: (%i1) (5+2); (%o1) 7 (%i2) thanks, Paola Kornel On 18 Oct 2016, at 12:13, Murat Yildizoglu <myi...@gmail.com<mailto:myi...@gmail.com>> wrote: Hi Kornelm I think that yolu should point İnci'de the .app package, where the unix binary lives. I do not have my laptop with me, but it could be the Macos folder in the app package (your .app file is in fact a bundle containing sub folders, and one of them contains the maxima binary Prof. Murat Yildizoglu thanks Murat, but that does not make a difference either, unfortunately, I just tried by adding /Applications/Maxima.app/Contents/MacOS/Maxima to the path, but the outcome is the same: just “5+2=“, but no output.