QuickBASIC programming for scientists and engineers
https://books.google.jo/books?isbn=0849344344

i have a paper version of this book: (but without its floppy disk):
Turbo basic Programs for scientists & engineers: Alan R. Miller
(turbo basic is the grand mother of powerbasic)

so it was not shame to program in Basic in 90 and 80. i saw even a calculus books have listings of basic code. not to mention the astronomy books. basic is the natural language in which the scientists usually think everyday. now the engineers know to use complex programs but i swear they know nothing about the deep issues in their subject, they lost inside the complexity.