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Linear algebra recommendation
Linear algebra is very useful in engineering. Usually in school is taught as a dry subject. The problems seem to be solved by mechanically following some rules without much intuition behind them.
I've watched a short course on youtube that has good insights about geometrical intuition behind linear algebra concepts. I highly recommend it.
Thanks Catalin Tiseanu for suggesting it.
There are lots of applications of linear algebra:
- Pagerank, the algorithm behind Google's success is based on eigen values and eigen vectors
- The winning entry in the Netflix Prize was based on Singular Value Decomposition
- 3D games use matrix multiplications for computing rotations, translations, shearing transforms
- in machine learning figuring out if your data is well conditioned for Stochastic Gradient Descent corresponds to having a small ratio between the min and max eigen value of the hessian matrix
- and of course they are sometime used in coding contest competitions :)