Support for scipy sparse matrices

[TKosir]

Greetings!

First of all, great python package! It has been very useful in my work.

I was wondering, is there any planned support for scipy sparse matrices? This would enable working with larger FEM models.

All the best!

[dprohe]

Currently I don't have plans to put sparse matrices into SDynPy, but that is mostly because I haven't needed that functionality (I'm an experimentalist, so my datasets are generally "small"). I'll make a note to look into it. If you'd like to take a shot at an implementation, feel free!

[TKosir]

I might take a stab at it. If I'll have anything general enough to include in this package, I will make a pull request.