In fact, electronic calculators are so widespread now that it's hard to believe they didn't become commonplace until the late 20th century. Before the invention of the modern calculator, people used some other tools for computation. The abacus, for example, is one ancestor of the calculator....
(It kinda makes sense as well because otherwise the prison tour at the start of Spellhold makes zero sense.) The flip side is your character being wise enough to know you can't just run off after Imoen. You're in a different country, in a different part of the world. You have no...
Use the parts of the formula to tell yourself a story or spell out a word that you can remember.[3] For example, if you're trying to remember that E = mc squared, you could remember it by saying that Elephants (E) are afraid of mice and critters. 3 Use a memory palace. A ...