alt Hacker NewsEven in the 80s HPs would do derivatives (and simple integrals). But, open book tests are the worst, nothing could save you!
I still remember giving Mathematica a relational equation of the atomic radius expectation values for it to integrate by parts and collect terms... at the time it failed to find the right integrating factor and gave gibberish. Probably works now.
I had a professor who polled the class if we preferred our exams to be open book or not. First year of undergrad.
The midterm was open book, he even shared the previous year's exams. The final, as expected, closed book, thank you very much.