Creating sparce matrices of arbitrary length and width and setting random entries

[tom murtha]

Hello,

I'm trying to make a program that creates a sparse matrix of some length and width and then sets a few random entries with setEntry.

I've copy and pasted the definition from the example solve driver, SparseMatrix<Givaro::ZRing<Integer>>, and following the tutorial it suggests it can be defined as SparseMatrix B(100, 200).

Putting the two together and trying SparseMatrix<Givaro::ZRing<Integer>> B(100, 200) gives the following error

"no matching function for call to ‘LinBox::SparseMatrix<Givaro::ZRing<Givaro::Integer> >::SparseMatrix(int, int)"

What is the proper way to do this?

Thanks,
-Tom

[Jean-Guillaume Dumas]

Dear Tom,
you are missing a domain for the elements.
If they are integers, you can define "Givaro::ZRing<Integer> ZZ;"
Then "B(ZZ, 100, 200)" will work.
Regards,
--
Jean-Guillaume Dumas.
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[tom murtha]

Thank you for the quick reply!