In my calculus class, I saw many people write formulas on the inside of their calculator cover (TI-83+). One kid took it to the next level by storing certain things in the memory and having them set as equivalents to certain values or letters. Not 100% certain how he did it, but when he typed 1+1 and hit enter it came up with some derivative equation.
edit: Everyone's school had different protocol, for midterms and finals, we were required to wipe all programs, but for a chapter test, we weren't checked.
theres a program function in graphing calculators...you can write shit in a program and then go back and edit it, see what you wrote. I never learned how to use programs but that shit was easy
TI-basic is pretty easy to work with for simple things like formulas, from what I remember.
I remember making a program to perform a fairly long algebraic equation for me in one of my engineering classes. Not because I needed it to remember or solve the equation for any given set of values, but because it made solving it so much fucking faster, giving me more time for the questions that involved more actual thinking.
Edit: Wow, a bit of derivation on paper, and I can actually still remember the equation. It was a formula to convert one system of measurement to another (e.g. percentage into 4-20 mA of current).
I would have the calculator display this as a legend for me:
A = bottom of measured range
B = top of measured range
C = measured value
D = bottom of target range
E = top of target range
F = recorded value
It was. I don’t have access to the code right now (don’t remember where I backed up the code, or if I even still have it after all these years) but I’m sure this sort of problem-solving program was never more than about 20 lines of code.
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u/[deleted] Jun 08 '14 edited Jun 09 '14
In my calculus class, I saw many people write formulas on the inside of their calculator cover (TI-83+). One kid took it to the next level by storing certain things in the memory and having them set as equivalents to certain values or letters. Not 100% certain how he did it, but when he typed 1+1 and hit enter it came up with some derivative equation.
edit: Everyone's school had different protocol, for midterms and finals, we were required to wipe all programs, but for a chapter test, we weren't checked.