ATAR Notes: Forum

Archived Discussion => 2010 => Mid-year exams => Exam Discussion => Victoria => Physics => Topic started by: kyzoo on June 08, 2010, 04:53:18 pm

Title: ...What is GRA mode on the calculator?
Post by: kyzoo on June 08, 2010, 04:53:18 pm
And why does Arctan(0.1) = 6.3 on GRA mode, whilst it equals 5.7 on DEG mode?
Title: Re: ...What is GRA mode on the calculator?
Post by: qwertyda2nd on June 08, 2010, 04:54:18 pm
Gradians lol, its like radians, cept different, different way of measuring an angle
Title: Re: ...What is GRA mode on the calculator?
Post by: m@tty on June 08, 2010, 04:54:27 pm
It's gradians. I've heard it is used in engineering. No idea what they are though...

Was your calculator on gradians? What was it on that for, lol.
Title: Re: ...What is GRA mode on the calculator?
Post by: cipherpol on June 08, 2010, 04:54:51 pm
i think it's base 10 for angles lol
Title: Re: ...What is GRA mode on the calculator?
Post by: TrueTears on June 08, 2010, 04:55:31 pm
it is another unit of measuring angles, 1 grad = 1/400 of a circle.
Title: Re: ...What is GRA mode on the calculator?
Post by: kyzoo on June 08, 2010, 05:01:27 pm
I have 8 modes on my calculator

1. Mth10
2. Line10
3. Deg
4. Rad
5. Gra
6. Fix
7. Sci
8. Norm

If I use Gra mode, then go into any other mode other than Rad or Deg, any angle will be given out in gradians.
Title: Re: ...What is GRA mode on the calculator?
Post by: taiga on June 08, 2010, 05:02:51 pm
Stands for Getting Ridiculous Answers.

Or that's what my really cool physics teacher told  me.
Title: Re: ...What is GRA mode on the calculator?
Post by: Cthulhu on June 08, 2010, 05:04:18 pm
afaik gradians are obsolete and are only used if you're 300 years old and angry at the world.

Quote from: taigastyle on June 08, 2010, 05:02:51 pm
Stands for Getting Ridiculous Answers.

Or that's what my really cool physics teacher told  me.
I lol'd
Title: Re: ...What is GRA mode on the calculator?
Post by: schnappy on June 08, 2010, 05:23:14 pm
Quote from: Cthulhu on June 08, 2010, 05:04:18 pm
afaik gradians are obsolete and are only used if you're 300 years old and angry at the world.


A few eeks ago i actually looked up what it was, thinking it might be the gradient of the line relative to the other... thought that might be cool. After about 5 seconds of searching and not getting a simple answer I gave up.

1/300 of circle I hear? Old? Angry? So using that now.