TI-89 making negative e


by elun
Tags: negative, ti89
elun
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#1
Jan29-11, 03:05 AM
P: 4
can anyone help me to get this quotation "e^(-x)" on ti-89 ?
after i putting "-" before "x" and pressing enter , the error syntax happens ...
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Borek
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#2
Jan29-11, 04:04 AM
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Have you tried to read manual? It says to not use "-" but (-) (button between dot and enter).
elun
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#3
Jan29-11, 04:26 AM
P: 4
ah tanx alot i was searching for it all day long !!!

TylerH
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#4
Jan29-11, 05:40 AM
P: 737

TI-89 making negative e


Did you not notice there are two minus signs? Just kidding. It's okay, we've all done it.
elun
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#5
Jan29-11, 08:45 AM
P: 4
Quote Quote by TylerH View Post
Did you not notice there are two minus signs? Just kidding. It's okay, we've all done it.
Yeah The 1st minus was the tricky one !
Mark44
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#6
Jan31-11, 01:49 PM
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I don't have a TI-89, but my guess is that one of the - keys is for subtraction, and the other is to change the sign of the operand.
elun
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#7
Jan31-11, 08:43 PM
P: 4
Quote Quote by Mark44 View Post
I don't have a TI-89, but my guess is that one of the - keys is for subtraction, and the other is to change the sign of the operand.
yeah exactly


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