# All Questions

7,487 questions
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### Efficient matrix multiplication for a certain matrix structure

I have the following matrix: $$C = \pmatrix{A & B}$$ where $B$ is dense and $A$ has significant sparse structure. $A$ is a B-spline collocation matrix so each row has some number of zeros, ...
9 views

### How to code the Crank-Nicolson Method for diffusion equation in MATLAB?

So I have discitized the Crank Nicolson Method for diffusion equation, but I don't understand how to put it into matlab. Since the solution isn't separable how is it inputted?
15 views

### When referring to pre-order, in-order, and post-order, is this for an ordered BST …? [on hold]

... or is it for a normal binary search tree ( not ordered ). I was reading this post here: https://medium.com/basecs/demystifying-depth-first-search-a7c14cccf056 and I noticed that the in-order ...
46 views