Many years ago, my father had a large number of older used textbooks.
I seem to remember a calculus textbook with a somewhat unusual feature, and I am wondering if the description rings a bell with anyone here.
Basically, this was a calculus textbook that took the slightly unusual route of avoiding "nice" numbers in all examples. The reader was supposed to always have a calculator at their side, and evaluate everything as a decimal, and only use 2 or 3 significant figures.
So for instance, rather than asking for the $\int_1^{\sqrt3} \frac{1}{1+x^2}$, it might be from $x=1.2$ to $x=2.6$, say.
The author had done this as a deliberate choice, since most "real-life" math problems involve random-looking decimal numbers, and not very many significant digits.
Does this sound familiar to anybody? Any ideas what this textbook might have been?