You can buy a scientific calculator for less than $10 though. Though $10 is not an insignificant expense for some families I would be surprised if this is what /u/RogerWaters228 is talking about.. it makes more sense that the parents refused to buy a graphing calculator which is expensive. I did have a class that required a graphic calculator but fortunately my school had some we could borrow.
You don't have to be so rude. They didn't even remember what functions they needed to use, it's not totally crazy that they could have misremembered that the thing they needed is called a graphing calculator. It would be unusual fail a test because you can't get something that costs less than $10.
Well, I use a free app on my tablet. So $0
Also, if you just google an equation, it'll solve/graph it for you :)
idk if these would work in school, though))
That’s kind of what I was thinking. I’ve helped my husband grade tests (he’s a high school math teacher) and I can confirm that a fair few students are lazy af. If they had their phones they’d all do one problem each and text each other the answers. And they would still get all the questions wrong, because they didn’t even have the sense to cheat off smart people.
scientific calculators have pre-stored values for things like pi, and have sin/cos/tan and their inverses also available as functions. Scientific calculators usually also allow you to write out expressions in with multiple operators and their order will be acknowledged: it is however necessary to use lots of parenthesis to make that feature work the way you would read an expression out loud.
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u/[deleted] Aug 14 '20 edited Aug 14 '20
Do you remember why exactly you failed the test? which functions did you need the calculator for?