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Jess


Last seen: 4 years ago Active since 2014

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What's the most efficient way to solve a sparse linear system Ax = b?
There are very few cases where the `\` operator isn't the fastest and roughly the most accurate. I've done a lot of testing of t...

6 years ago | 0

Answered
The way to solve a singular matrix
% Goal: solve A*x == b for x % Set up some matrix A (I used a sparse matrix) -- do yourself % Set up the vector ...

8 years ago | 0

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nderiv_fornberg( k, xPts, u)
Computes a derivative of arbitrary order on a vector u on an uneven grid.

9 years ago | 1 download |

Question


Caching a large 3D interpolation using griddata()
I'm using griddata() to go from a spherical grid of sizes on the order (128x256x1500) to a Cartesian cube centered on the sphere...

10 years ago | 1 answer | 0

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