TI-89 making negative e

elun

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 ...

Borek

Have you tried to read manual? It says to not use "-" but (-) (button between dot and enter).

elun

ah tanx alot i was searching for it all day long !!!

TylerH

Did you not notice there are two minus signs?

Just kidding. It's okay, we've all done it.

elun

Quote by TylerH

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

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

Quote by Mark44

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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elun	TI-89 making negative e Tweet 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 ...

Borek Admin	Have you tried to read manual? It says to not use "-" but (-) (button between dot and enter).

TylerH	TI-89 making negative e Did you not notice there are two minus signs? Just kidding. It's okay, we've all done it.

Mark44 Mentor	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.