32 and 64 bit on same computer

Can I have 2013b 32-bit and 64-bit versions running on the same computer ? I have 64-bit installed and I also need the 32-bit version (already on another computer), but I am afraid that the 32-bit installation will wipe out the 64-bit one.

[Walter Roberson]

duplicated by later http://www.mathworks.com/matlabcentral/answers/297529-32-and-64-bit-on-same-computer which has an answer