TI-89 making negative e

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  • Thread starter elun
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  • #1
elun
4
0
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 ... :confused:
 
Last edited:

Answers and Replies

  • #2
Borek
Mentor
28,998
3,659
Have you tried to read manual? It says to not use "-" but (-) (button between dot and enter).
 
  • #3
elun
4
0
ah tanx alot i was searching for it all day long !!! :wink:
 
  • #4
TylerH
724
0
Did you not notice there are two minus signs? :tongue: Just kidding. It's okay, we've all done it.
 
  • #5
elun
4
0
Did you not notice there are two minus signs? :tongue: Just kidding. It's okay, we've all done it.

Yeah The 1st minus was the tricky one ! :biggrin:
 
  • #6
36,191
8,173
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.
 
  • #7
elun
4
0
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 :wink:
 

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