HP Prime or HP 50g

[Chris Pem10]

If you are an Engineering student, then you need a calculator you can count on to "just work" every time you take it out of your backpack. Period. No reboots, no crashes, no internet forums to help you get it working. If you do decide to sit for exams with a Prime, it would be wise to have a backup HP50,49,48 handy. You can get a 49 g on ebay for $20.

If you are an Engineer... you stick with the calculator that got you through college !

Interesting to note:
HP48's had a battery life measured in semesters; you can replace the batteries in 30 sec for $2.
HP50 has a battery life measured in months; you can replace the batteries in 30 sec for $2.
HP Prime has a battery life measured in weeks or days; just remember to keep the battery topped off. Else you can replace the battery in 3 minutes with a small screwdriver and a (hopefully) charged spare.