Stupid calculator question time: I lost my instruction manual to my TI-89 a long time ago, and I've forgotten how to get the blasted thing to give me derivatives and integrals. Anyone know the proper command for these?
EDIT: I know how to bring up the command for integrals or derivatives, I just can't seem to get the format quite right for it to accept the input....
Joined: Sun 08-18-2002 10:33AM Posts: 751 Location: Kansas City, KS
Source: TJ North
You can't do S(xsin(x),x) though, you need an explicit multiplication symbol: S(x*sin(x),x)
_________________ It is by caffeine alone I set my mind in motion.
It is by the beans of Java the thoughts acquire speed,
the hands acquire shaking, the shaking becomes a warning.
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Double-thanks, this is gonna save my ass for a test tomorrow, because I haven't had any calc-related classes in a long time, and can't remember integrals or derivatives for the life of me right now.
Joined: Sun 11-09-2003 1:35AM Posts: 1145 Location: novus cella
Source: Triangle
Important Tip:
When bringing up the integral or derivative in the catalog menu, they list the format below the menu itself. So if you highlighted the integral function, it would list at the bottom:
Joined: Sun 08-18-2002 10:33AM Posts: 751 Location: Kansas City, KS
Source: TJ North
Also, if you have a fraction in the standard numerator/denominator format and you want a decimal approximation, just hit the diamond key below the 2nd key and press enter.
_________________ It is by caffeine alone I set my mind in motion.
It is by the beans of Java the thoughts acquire speed,
the hands acquire shaking, the shaking becomes a warning.
It is by caffeine alone I set my mind in motion.
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