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View Poll Results: Well?
Yes 1,081 57.99%
No 783 42.01%
Voters: 1864. You may not vote on this poll

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  #1 (permalink)  
Old 30 Apr 2004, 12:25 am
> K9999 K9999 is offline
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K9999 is an unknown quantity at this point
tangent 90 degrees
OK, does every1's calculator(s) read "error" when you type in 90 then "tangent"?
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  #2 (permalink)  
Old 30 Apr 2004, 9:15 am
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Well, it says "invalid input for function". I suppose its because a tangent and 90º would be parallel and there'd never be an answer. They'd never meet. ???
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Old 1 May 2004, 12:18 am
> K9999 K9999 is offline
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K9999 is an unknown quantity at this point
o thats why, well i wanted to see if anyone had a calculator that had an actual # when you type in tan90
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Old 1 May 2004, 12:19 am
> K9999 K9999 is offline
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K9999 is an unknown quantity at this point
and some1 put no?
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  #5 (permalink)  
Old 1 May 2004, 3:03 pm
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No?

Maybe they didn't get exactly the error you typed in, or want to screw with your results for a laff?!!

You don't get any result at all, just error, when you put that function into a calculator
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Old 2 May 2004, 12:18 pm
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it is undefined, you can not get tan 90, it does not exist in the real number system.
it can only be referr to as the imaginery number system, or unreal number system, in that system that use the letter i (small i not big I) to represent imaginery numbers. Numbers like square root of any negative numbers and stuff..

once again this shows how math sucks
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Old 2 May 2004, 12:27 pm
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I voted yes. That number is outside of reality.
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Old 2 May 2004, 2:31 pm
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correct!
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Old 2 May 2004, 5:17 pm
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Why have two people voted no? I can't figure that one out.
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Old 2 May 2004, 5:32 pm
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i voted for "no" by mistake, my bad *hehe*
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Old 2 May 2004, 5:46 pm
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Bah! You see what too much maths does to you!
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Old 2 May 2004, 5:50 pm
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*lol* i only got this semister to go thru with, then i will never have to worry about math ever again.
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Old 10 Jun 2004, 1:21 pm
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Remember... Tangent is equal to Sine over Cosine, or y/x.

Sine of 90 deg is 1. Cosine of 90 deg is 0. (Think Unit Circle. Basic Trig, people!)

Therefore... 1/0...

What is ANYTHING divided by 0?

Undefined: Divide by Zero Error.
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Old 11 Jun 2004, 6:21 am
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undefine.....


its a fact... i dun see why ppl are argueing over this
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  #15 (permalink)  
Old 10 Jun 2005, 5:02 pm
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Halo Freak is an unknown quantity at this point
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  #16 (permalink)  
Old 10 Jun 2005, 5:27 pm
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Naru Rules is an unknown quantity at this point
If you are using a graphing calculator (ex. TI-83) or the windows calculator on scientific mode you can input the tan of 90 in radian mode and get an answer but not in degree mode.
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  #17 (permalink)  
Old 10 Jun 2005, 7:29 pm
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Alex is an unknown quantity at this point
tan 90 isn't out of reality. It's infinity, which is real (although not really comprehensible/displayable, but that's a different matter).


And radians are far superior to degrees. And you can do tan 90 in radian mode because 180 degrees = pi radians. So 90 radians is 16200/pi degrees, which is 5156.6 degrees. (1dp). Which is the same as 116.6 degrees. Throw in tan 90 on radian mode and the answer will be very similar to tan 116.6 on degrees mode (although not exactly the same as I rounded).

tan 90 in radians = -1.995 (3dp)
tan 116.6 in degrees = -1.996 (3dp)


See.
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  #18 (permalink)  
Old 10 Jun 2005, 7:32 pm
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why could I see this one coming as soon as I saw Alex on here? XD

thankee for the explanation
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  #19 (permalink)  
Old 10 Jun 2005, 7:39 pm
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