Urgent Help Regarding My Scientific Calculator!!

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Aleksander Krol
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when i used tan inverse (3/2) on my calculator i get 62.56659164 but others are getting different values than mine. idk why??? How can I fix this issue??
Last edited by Aleksander Krol; 1 month ago
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Blackrose06
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is your calculator on degrees or radius? it the top right hand corner off the screen it will have an "r" or a "d"
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Aleksander Krol
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(Original post by Blackrose06)
is your calculator on degrees or radius? it the top right hand corner off the screen it will have an "r" or a "d"
it's on r.
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Aleksander Krol
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should i press shift 9 = AC ?
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Blackrose06
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change it to d by clicking the mode button i think
d= degreese
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Interea
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(Original post by Aleksander Krol)
it's on r.
Sounds like you're on g actually, r would give you something less than 1. You probably want to be in degrees or radians, so d or r, depending on what the question asks for
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Blackrose06
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whats g??? let me get my calculator
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Interea
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(Original post by Blackrose06)
whats g??? let me get my calculator
Gradians, never used in GCSE or A level but can give answers annoyingly close to degrees so you don't notice it's wrong :rolleyes:
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Aleksander Krol
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(Original post by Interea)
Sounds like you're on g actually, r would give you something less than 1. You probably want to be in degrees or radians, so d or r, depending on what the question asks for
thanks btw. it's working fine now. i got into D mode rn.
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Interea
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(Original post by Aleksander Krol)
thanks btw. it's working fine now. i got into D mode rn.
Ah good - definitely check that at the start of any exams, it always catches at least 1 person out!
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Blackrose06
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oh g is gra on my calculator. click shift set up (same as mode) and click either 3 or 4
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Aleksander Krol
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(Original post by Blackrose06)
change it to d by clicking the mode button i think
d= degreese
thanks for helping me!!
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Blackrose06
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(Original post by Aleksander Krol)
thanks for helping me!!
no problem. my teacher always says to put it on degrees. so i do and shift, 9, CA does nothing.
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mnot
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(Original post by Interea)
Gradians, never used in GCSE or A level but can give answers annoyingly close to degrees so you don't notice it's wrong :rolleyes:
This is interesting.

I have 2 engineering degrees & work in scientific research and have never come across any application using gradians.

Seems something that is probably just more confusing to high school students then the benefit of installing this function on the calculator.
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Aleksander Krol
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(Original post by Blackrose06)
no problem. my teacher always says to put it on degrees. so i do and shift, 9, CA does nothing.
thanks for your advice! :')) i was scared for a moment though. hahah
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Aleksander Krol
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(Original post by Interea)
Ah good - definitely check that at the start of any exams, it always catches at least 1 person out!
thanks for your advice too!! i will try to be diligent next time. <3
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Interea
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(Original post by mnot)
This is interesting.

I have 2 engineering degrees & work in scientific research and have never come across any application using gradians.

Seems something that is probably just more confusing to high school students then the benefit of installing this function on the calculator.
Definitely, I've never found any use for the function other than frustrating students, and with A level exams requiring you to be able to switch between degrees and radians on the same paper it's so easy to accidentally hit a wrong button. It's an awkward one because you can teach someone how to tell if their answer is reasonable, but when their calculator gives 56.3 in degrees and 62.6 in gradians there's often no way to spot the mistake unless they see that tiny G at the top of the screen :rolleyes:
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mnot
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(Original post by Interea)
Definitely, I've never found any use for the function other than frustrating students, and with A level exams requiring you to be able to switch between degrees and radians on the same paper it's so easy to accidentally hit a wrong button. It's an awkward one because you can teach someone how to tell if their answer is reasonable, but when their calculator gives 56.3 in degrees and 62.6 in gradians there's often no way to spot the mistake unless they see that tiny G at the top of the screen :rolleyes:
All very odd.

I always used to actively check R & D on relevant questions and in exams always do a test like sin(90) just to double check.
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