ibarra valenzuela wrote:
Ok, so there is no dinamically change or export i wanted to put it like on a webpage and then change the variables there, thank you
Unfortunately no until you talk Valery into hosting your file(s) ;-)
You will have to bring along your own laptop with Mathcad installed to show your files in the classroom. Using a M$ surface I once tried to use a remote desktop connection to a standalone machine with Mathcad installed, but Mathcad refuses to work as of license violation 
That is silly because the machine wasn't a M$ server and so the program couldn't be used twice at the same time anyway, but the license manager seems to make no difference here - so no success. A pity as it would have been very convenient.
Its sad we don't have a Mathcad viewer like Microsofts Exel and Word viewers with dynamical capability The last Mathcad Player was for Version 7 and can't read newer file formats.
Also the new and infamous Prime Express can't be used as viewer for various reasons:
- Its not a portable, single exe-file program but needs a full, huge installation
- it can't read older file formats from Mathcad 15 and below
- it does not work as a dynamical viewer if the sheet uses "premium" features like solve blocks, program structures, symbolic math or premium functions. The program will show the results when the file was saved last, but if you change a variable, the sheet will fail and show nothing. So the value of Express is less than a pdf print in that case.