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AR15.COM
8/29/2007 8:44:12 PM EDT
I'm trying to do some homework with vectors and my calculator is being a pain in the ass.  If I enter 130cos(247) it gives me -130sin(23) instead of the actual answer.  Obviously something is set incorrect, but I have no idea what it could be.
8/29/2007 8:53:43 PM EDT
[#1]
you have to use the function keys to get the answer into a number. At least that's how my TI is. Mine's at work and I can't remember how to get it there. Check the vector menus too.
8/29/2007 8:54:29 PM EDT
[#2]
Are you in radian or degree mode? I don't even know if that will help, but that was a problem I had in trig with mine.
8/29/2007 8:57:15 PM EDT
[#3]
Nope, it's in Degree mode.
8/29/2007 8:57:34 PM EDT
[#4]
Try this too:

T.I. 89 Vector Graphing Limitations
8/29/2007 9:18:50 PM EDT
[#5]
Bump