Save matrix to file

[James Tran]

Dear all,
The matrix in sympy save as dictionary. I want to save a big matrix with size 30000x30000. Is there any method to save it to hard-disk driver? I tried with numpy but
it cannot work.

Thank you,

[Jason Moore]

If your matrix is dense and you store floats in it, for example, then your matrix will consume 7.2 gigabytes of space. Are you sure that is what you are trying to do? SymPy matrices will take up even more space than that depending on the variable type.

Can you explain what you are trying to do? There are many options for saving large data to disk but the answer depends on the situation.

If you have a lot of memory on your machine you can try to write the results of srepr() to file or even maybe pickling the matrix.

Jason
moorepants.info
+01 530-601-9791

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[Sudhanshu Mishra]

Hi,

I think we can create a helper method, say save(filename, output_type) defined in Basic, which would write that object in the provided filename.

Just a thought. I don't see many use cases though, given we have IPython notebook.

Sudhanshu Mishra

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