Pick up any odd book on linear algebra. Matrices, base changes, eigen-values will pop up. It is hard to appreciate **why **an intelligent person should spend hours and days, mastering these skills. Our excursion, begins with an attempt to understand that very thing: essence of linear algebra and its motivation.

Here is a brief sketch of the session:

**Motivation: **Einstein badly needed linear algebra. Why?**Essence: **All about Linear operators, their domain, codomains and how wonderfully they are related with distance!**The Determinant Tool: **Axiomatically determinant is just a function from ordered tuple of \( n^2 \) real numbers to one real number. **Invariant subspaces and factorization: **You can factorize a matrix. But ‘essentially’ that is a comment on invariant subspaces.

This open session is scheduled on 14th November, Thursday 2019 at 8 PM I.S.T.

P.S. The featured image of this post is the cover of ‘Linear Algebra Done Right’. It is perhaps one of the most beautiful books on the subject. Highly recommended!

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