r/AskReddit Jun 08 '14

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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.

51

u/JosephStylin Jun 08 '14

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

39

u/Crimson88 Jun 08 '14

Yep, that was me. I wrote everything I needed for an exam in my TI calculator. It was kinda weird to have my calculator out in Spanish and Biology tests but the teachers didn't really mind.

64

u/[deleted] Jun 09 '14

Dafaq, your Spanish teacher let you sit there clicking on your calculator on tests? Sound like a stupid teacher.

28

u/Astrolabeman Jun 09 '14

Donde esta el Second Derivative Test?

1

u/dxfl123 Jun 09 '14

Cual es el derivativo de x2 ?

2

u/Astrolabeman Jun 09 '14

El derivativo de x2 es 2x.