I seriously do NOT want the two plus hours back I spent diddling ( 1 bit not ) all those bits. I first learned it in binary on an HP, and then had to learn it on an IBM mainframe, and then got an 8087, and it was so incredibly fast, but error crept in for Fourier transforms. Started using extended double to keep the errors at bay. Hilbert spaces here we came.
The killer app was not Lotus 1-2-3 v2, but Turbo Pascal w/ 8087 support. It screamed through tensors and 3D spaces, places we only saw on plotters.
It was not until I got a G3 and used Graphing calculator that I could explore sombrero functions of increasing frequency.
When I was at the university I thought is was cool to do my project reports and thesis in LaTeX, bought all well known reference books, and advocated it everywhere.
Now a couple of decades later, I just use Word or Pages.
Actually, I did one of these jumping from one megacorp to another. It took up my entire weekend, but I landed the interview. I then had to take 2 days off to fly out for the interview. Luckily, I got the job.
You either got very lucky or you're far more effective at pre-screening companies than I am. The last time I spent that kind of time on a test was for a megacorp in the top 50 of the fortune 500.
The process was much the same as you described: multiple day test followed by taking two days off to fly out for the interview. Except I didn't get the job and nobody who interviewed me ever looked at the take home test.
