Julia EvansWhy does 0.1 + 0.2 = 0.30000000000000004? https://jvns.ca/blog/2023/02/08/why-does-0-1-plus-0-2-equal-0-30000000000000004/
Debora Weber-Wulff@b0rk Ancient but still good:
What every computer scientist should know about floating point arithmetic
https://docs.oracle.com/cd/E19957-01/806-3568/ncg_goldberg.html