Thomas William Körner (born 17 February 1946) is a British pure mathematician and the author of school books. He is titular Professor of Fourier Analysis in the University of Cambridge and a Fellow of Trinity Hall. He is the son of the philosopher Stephan Körner and of Edith Körner.
He studied at Trinity Hall, Cambridge, and wrote his PhD thesis Some Results on Kronecker, Dirichlet and Helson Sets there in 1971, studying under Nicholas Varopoulos. In 1972 he won the Salem Prize.
He has written three academic mathematics books aimed at undergraduates, and two books aimed at secondary school students, the popular 1996 title The Pleasures of Counting and Naive Decision Making (published 2008) on probability, statistics and game theory.
This book is written in the most complicated possible way! It feels like the writer hates the readers and does not want us to understand anything.
I'm pulling my hair while reading this book! I was surely about to lose all my interest in linear algebra after reading this book! I can barely understand it. This book is surely NOT for beginners who are trying to understand linear algebra from the scratch!
This book used so many notations to explain something, that I am forgetting the notations themselves before understanding the topic. I have watched few youtube videos after I tried to go through this book. I think I am understanding much better from youtube and other books.
My suggestion to the new students of linear algebra: DO NOT FOLLOW/READ this book if you are trying to understand linear algebra from the scratch! You will surely lose interest soon. :(