Lot of formulas (100+) had to be remembered to calculate different KPIs a corporation. For example I had two semesters of Corporate Finances. Both had class that required us to memorise tons of lexical knowledge. I was majoring in CS in one collage and doing Business Management in another collage. So probably the best way of preventing people from cheating was by paying attention to who was using the calculator too much. That being said I think the calculator can be modded with custom things that could be hidden.
#Ti 89 with brighter screen plus
So then the teacher might sneak up behind the student and have a glance at what they were doing on the calculator.Īlso, to try and combat those kinds of things my school always had us show them the list of programs on our TI-84 Plus calculators before a test started, and we had to delete anything outside of what was allowed. If someone was paying an abnormal amount of attention to their calculator, it could indicate that they had for example put notes on the calculator, or had some extra programs that had features outside of the allowed ones. I remember when I was in HS, one of my teachers said that they could easily spot if anyone was cheating with their calculators because almost all of the students that were not cheating would be focused on reading and writing by hand most of the time, and only occasionally reach for their calculator to calculate something with it. I did have fun making arcade game clones and custom boot screens in assembly on it though. I somehow managed to be one of the first people done anyway. I ended up having to re-derive a small bit of transmission line theory from scratch in order to solve the problems. On my engineering electromagnetics final I forgot to change the batteries in my TI-89 the night before and the calculator didn't work. It had a nice side effect of saving my bacon several times on final exams. Solving characteristic polynomials for poles and zeros was just a pain in the neck. About the only time I found it really useful was for solving for stability characteristics and tuning tedious PID loops for control systems problems. I found after a while that my TI-89 just sat in my backpack doing nothing most of the time and all I needed was a scientific calculator for most things. In my case I found it faster to do most of the problem solving by hand, and I just used the calculator to punch in the numbers to get the final answer. differential equations and computing integrals.
A goodly number of my engineering classmates used their TI-89s as a crutch and forgot most of the details of solving e.g. I had a TI-89 I got in 9th grade and had through the end of college, but I found I had the opposite experience with it.
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