nkhodyunya

The claim that geometric algebra is not rigorous made me confused. But the lack of proper references is much more confusing to me. Back in the days when I was doing research in Chevalley groups the definitive and most cited source was (and still is) Geometric algebra by E. Artin. And there are some more recent treatments recognized in math community, e.g. classical groups and geometric algebra by L. Groove and the geometry of the classical groups by D. Taylor. At least this books made everything rigorous and clear. But may be there is some other field with the same title?

I've heard about book by Doran and always thought that it's more about applications.

Nowadays if you face a tool with sparse official documentation or with total absence of it, it's probably better to find another tool or be prepared to learn from the source code.

On my MacBook Air 2013 I still have to convert scanned pdf to djvu in order to read it; otherwise the rendering with poppler is too slow.

I don't always enjoy the books I've read, but i always enjoy those that I haven't. People never ask me for recommendations. In spite of this, I generously provide my unwanted opinion.

I totally agree with you and hope many of us too.

I think early math education suffers from the lack of awareness about how important is exactness in math. People come to math from real world, where they don't mind to be rigorous about the meaning of every word. Most newcomers tend to skip words they don't find interesting and then penalty seems to come from nowhere. And education even encourages such error-prone behaviour, by giving wrong exercises and poor material.

Math isn't hard, it just doesn't work for those who don't know how to use it. And knowing how to use it means understanding what exactly you are doing. Many students don't bother about what does it mean to do when asked to solve an equation.

No, I disallow it.

Why should I prefer this to Powershell?

Isn't TRAMP a way to manage remote files that is way better than starting emacs directly on a remote machine?