Difference between MATLAB 32 & 64 bit versions (2013a)

Is there a difference between a 32 bit and 64 bit version for Matlab 2013a, OR is there just one version? I have a Windows 7, 64 bit operating system and would like to purchase the correct version for my PC.

Answer 1

[Walter Roberson]

The 64 bit version can access more memory.

Some of the toolboxes are only available in 32 bit mode, and some interfaces are only available in 64 bit mode.

When you purchase a version, you are purchasing the right to use it on any supported operating system. Depending on the exact license you get, you probably get the right to install it on several machines simultaneously (potentially machines with different OSes), and you probably get the right to use it on 2 or more machines simultaneously (e.g., you could be running a long program on your desktop while you do some code development on your laptop.)

Answer 2

[Image Analyst]

There are two versions. If you're just running on your computer, you should get the 64 bit version. If you bought the compiler and need to compile programs for people who are on Win 7, 32 bit, or Windows XP, then you can also get the 32 bit version, but only if you need to deploy compiled code (not regular text m-files). You can have both versions on your system and they play happily together with no conflicts. You do not have to pay extra or use up a license if you have both installed on your computer.