Thread: Ti-84 Graphing Nint

While trying to graph NINT, I keep getting the wrong graph.

I'm trying to graph on the interval [0,3].
I first got a straight line graphing:
fnint(the function, x, 0, 3)
Then I looked at my book and changed the x-res to increase speed.
Now the function looked like an line that is increasing.
I had put in:
fnint(the function, x, 0, x)

What should I do?
Thanks!

Originally Posted by Truthbetold

While trying to graph NINT, I keep getting the wrong graph.

(1) I'm trying to graph on the interval [0,3].


I first got a straight line graphing:
(2) fnint(the function, x, 0, 3)
...

I don't know what went wrong:

to #1: I've attached the screenshots of the graph.

to #2: The command fnInt is used to calculate the integral



which will yield one real number. See attachment.