In my freshman physics class (1972-73) that price was a brief ethical issue. The professor said that for a midterm we could use one page of written notes and a

In my freshman physics class (1972-73) that price was a brief ethical issue. The professor said that for a midterm we could use one page of written notes and a slide rule. One student asked if he could use a calculator instead of a slide rule. "Are you going to buy calculators for everyone else in the class, too?" the professor asked. He felt it would be unfair to give such a big advantage to those few who could afford an HP-35 at that time.