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 

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:

 18/Maple 18.app

Can anyone please help?

Many thanks,


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