Mupad on Mac; exporting graphics to disk

In Mupad 4 (the old standalone version of Mupad) the following statement exports a graphic to the desktop of my Mac:

myimages:="/Users/administrator/Desktop/": plot(plot::Function2d(x^2,x=-1..1),OutputFile=myimages."image_1.jpg");

The same statement when called from Mupad 5.5 (Matlab 2010b) gives an error:

Error: cannot launch mupad process [vcam::new]

Any suggestions? Regards Wilhelm

Answer 1

[Martin Knelleken]

Hi Wilhelm,

I checked

myimages:="/tmp/": plot(plot::Function2d(x^2,x=-1..1),OutputFile=myimages."image_1.jpg");

on my Mac in MATLAB 2010b and it works as expected.

However, if I choose a directory where I don't have write permissions or which doesn't exist I get the same error message as you. E.g. myimages:="/Users/NameOfAnotherUser/":

Aside from the fact that the error message is confusing and unhelpful in this case it seems that you don't have write access to /Users/administrator/Desktop/.

Regards

- Martin