# cot on calculator?

• Nov 12th 2008, 10:42 PM
daydreembelievr
cot on calculator?
cot 0.2674

I have a scientific calculator. I'm not entirely sure how to do this. Can someone tell me if they know the sequence to enter or if easier (because of variance in calculators) just tell me the answer and I can guess and check until I figure it out.

I know I enter a combo of tan 1/x or tan^-1

thanks soo much :D
• Nov 12th 2008, 10:45 PM
janvdl
Quote:

Originally Posted by daydreembelievr
cot 0.2674

I have a scientific calculator. I'm not entirely sure how to do this. Can someone tell me if they know the sequence to enter or if easier (because of variance in calculators) just tell me the answer and I can guess and check until I figure it out.

I know I enter a combo of tan 1/x or tan^-1

thanks soo much :D

Shift or 2nd Function -> Tan -> 0.2674 -> Equals

How much easier can it be?
• Nov 12th 2008, 10:46 PM
11rdc11
Quote:

Originally Posted by daydreembelievr
cot 0.2674

I have a scientific calculator. I'm not entirely sure how to do this. Can someone tell me if they know the sequence to enter or if easier (because of variance in calculators) just tell me the answer and I can guess and check until I figure it out.

I know I enter a combo of tan 1/x or tan^-1

thanks soo much :D

It wouldn't be arctanx
• Nov 12th 2008, 10:47 PM
daydreembelievr
When I do that I get 14.97 and that isn't right though. hmm?
Thanks much.
• Nov 12th 2008, 10:50 PM
11rdc11
Quote:

Originally Posted by janvdl
Shift or 2nd Function -> Tan -> 0.2674 -> Equals

How much easier can it be?

Hi janvdl! I don't think that would work since he wants the cotangent. I assuming he is having problens because a scientific calc does not have a cot key like a graphing calc does.
• Nov 12th 2008, 10:53 PM
daydreembelievr
Im using a TI-36X
Hmmm. I wonder..
• Nov 12th 2008, 10:54 PM
Chris L T521
Quote:

Originally Posted by 11rdc11
Hi janvdl! I don't think that would work since he wants the cotangent. I assuming he is having problens because a scientific calc does not have a cot key like a graphing calc does.

Note that cot x = 1 / (tan x)

So if your calculator has the tan button, hit:

1 / tan (.2674)

--Chris
• Nov 12th 2008, 10:55 PM
janvdl
Quote:

Originally Posted by 11rdc11
Hi janvdl! I don't think that would work since he wants the cotangent. I assuming he is having problens because a scientific calc does not have a cot key like a graphing calc does.

Oh yes, high school trig class 1... (Doh)

cot x = 1 \ tan x

(Dang you Chris! :D)
• Nov 12th 2008, 10:56 PM
11rdc11
$\frac{1}{\tan{x}} = \cot{x}$

Edit: Chris beat me to it.
• Nov 12th 2008, 10:57 PM
daydreembelievr
It has the tan button. But what do you mean by 1/tan?
Do you mean hit 1/x and then tan? because thats not working either. thanks so much.
• Nov 12th 2008, 10:58 PM
janvdl
Quote:

Originally Posted by daydreembelievr
It has the tan button. But what do you mean by 1/tan?
Do you mean hit 1/x and then tan? because thats not working either. thanks so much.

Press:

tan -> 0.2674 -> equals -> then take it to the power of -1
• Nov 12th 2008, 10:59 PM
Chris L T521
Quote:

Originally Posted by janvdl
(Dang you Chris! :D)

Haha...no worries. This kind of thing happens to me ALL the time on MHF (where someone beats me by a minute)... especially the one where two posts appear at the same time (Rofl)

--Chris