Thanks. After a bit of experimentation, I found that you can have a block outputting several lines, but you need to manually add commas and carriage returns, e.g.,
#+BEGIN_SRC mathematica :results output f[x_] := 3*x^2+3; f[8], "\n", D[f[x],x] #+END_SRC #+RESULTS: : 195 : 6*x > On Mar 13, 2015, at 4:16 PM, Yi Wang <tririverwan...@gmail.com> wrote: > > Dear Richard, > > You can do: > > #+BEGIN_SRC mathematica > f[x_] := x+3; > f[5] > #+END_SRC > > Here are explanations: I actually put everything in the SRC block into a > Print[...]. > > So in the second example, what actually runs is > > Print[f[x_] := x+3 > f[5]] > > This does not return any value. Because what it really does is print the > value of "f[x_] := x+3 f[5]" > > Here is the code: > > (concat > (mapconcat ;; define any variables > (lambda (pair) > (format "%s=%s;" > (car pair) > (org-babel-mathematica-var-to-mathematica (cdr pair)))) > vars "\n") "\nPrint[\n" body "\n]\n") > > If anybody has idea to improve it, I will be happy to see and work it out! > > Best, > Yi > > > > > On Sat, Mar 14, 2015 at 7:09 AM John Kitchin <jkitc...@andrew.cmu.edu > <mailto:jkitc...@andrew.cmu.edu>> wrote: > I wonder if this is an output vs value issue on the return of the > block. If you set :results output does anything change? or, is there a > way to specify a return value? or specifically print something? > > Richard Stanton writes: > > > I recently saw this posting about org support for Mathematica. Thanks for > > writing this! > > > > Unfortunately, while I can get it to work for simple things (e.g., 2+3), > > even slightly more complex things don't seem to work. For example, suppose > > I'd like to define a function f(x) = x + 3, and then calculate f(5). In a > > MMA notebook, if I type > > > > f[x_] := x+3 > > f[5] > > > > I get the answer 8. If I try the same code in an org-mode code block, > > here's what happens: > > > > #+BEGIN_SRC mathematica > > f[x_] := x+3 > > f[5] > > #+END_SRC > > > > #+RESULTS: > > : Null > > > > Am I missing something obvious here? > > > > Thanks very much. > > > > Richard Stanton > > -- > Professor John Kitchin > Doherty Hall A207F > Department of Chemical Engineering > Carnegie Mellon University > Pittsburgh, PA 15213 > 412-268-7803 > @johnkitchin > http://kitchingroup.cheme.cmu.edu <http://kitchingroup.cheme.cmu.edu/>
