My Student Version of MATLAB cant invert 20x20 matrices or "\" 100x100 matrices

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Thor Larson 2016-2-23

编辑： Philip Borghesani 2016-2-26

I have the Student version of MATLAB R2015b. However, I have encountered some significant problems in it.

If I create a random 20x20 matrix A, inv(A) crashes Matlab.

The same thing happens if I generate a random 100x100 matrix A, a random 100x1 column vector f, and do A\f.

I have ample space on my harddrive; in fact, I have 3.45 GB of space free.

Walter Roberson 2016-2-24

Are any of these symbolic?

Thor Larson 2016-2-26

编辑：Thor Larson 2016-2-26

No, I just used A = rand(20).

Also, my processor is an AMD A8-6410 APU with AMD Radeon R5 Graphics (2.00GHz)

I have 3.45 Gb of usable RAM

Philip Borghesani 2016-2-26

编辑：Philip Borghesani 2016-2-26

Direct link to my best guess for your solution in above answer.

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