Matlab System Error in Mac (Yosemite)

Hi!

Several days ago I bought a Matlab student version (R2014a) for Mac (I am using OS Yosemite - Retina Display Late 2013). However, the Matlab freezes and ends up with a system error message every time I did this:

For example:

x=[1 2 3 4 5];

k=[1 2];

y=k*x

Matlab will then display:

Error using *(underlined)

Inner matrix dimension must agree.

When I click the *(underlined) symbol, the busy cursor (rolling ball) appears for a few minutes then the error message pops up.

I attached the screenshot below.

Although I understand the error usage of * in the problem above, would you mind showing me how to solve this problem so that every time I click an error message to get explanation the Matlab does not crash?

Thank you so much for your responses! I really appreciate that!

[Ken Atwell]

Does MATLAB also crash if you type the following?

 EDU>> doc mtimes

[Stephen]

Thank you for replying my question!

Yes, my Matlab crashes when I enter the "doc mtimes" command. Would you mind showing me how to solve this problem?

Thanks!

[Ken Atwell]

Try http://www.mathworks.com/matlabcentral/answers/71718-matlab-r2013a-and-r2012b-documentation-is-totally-broken-in-mac-os-x-10-8-3