The method VladimirN has described IS for Prime 3.1, too.
Maybe you have to adjust the path given. Chances are it should be
"C:\programmi\PTC\Mathcad Prime 3.1\MathcadPrime.exe" /culture:en-US
So you may create different icons to start Prime in different languages.
Its very annoying and uncomfortable to have to switch language that way (you will have to switch the help language in a separate step via a menu in the help itself).
Especially because Prime does not ask for the language at installation time.
The icon you may create with the method described does not affect the language you will see in Prime when you double click a Prime-file or open it from a post in this forum. Prime will still show the language its had chosen at installation time. To cope with this you would have to change some registry entries. Really nasty.
At least I found no configuration file where Prime would store its "default" language.
There is the file "MathcadPrime.exe.config" in the installation directory of Prime and in this file I find a couple of times the text "Culture=neutral". Maybe this means that Prime chooses every time on startup which language to run in depending on the OS settings. Maybe changing every occurrence of "neutral" to "en-US" (or whatever language you are interested in) would force Prime to use that language also when started without the "/culture" command line switch. The brave hearted will test and hopefully tell us.
And I thought that the restart necessary in Mathcad 15 after a language change was uncomfortable! PTC has managed to make this simple process ten times more difficult!
WE
