Author Topic: Math question (Read 650 times)

davidpt40 · « **on:** September 24, 2003, 07:42:23 AM »

I have a test today which requires me to work out a logistic growth model. So heres my question- The problem starts out with N subscript T. So for instance lets say N is 10 and T is 2. How would I punch that into a graphing calculator? If the T were above the N, I know I would just punch in the (^) key, but it is below the N.

Zippatuh · « **Reply #1 on:** September 24, 2003, 08:18:45 AM »

Octavius · « **Reply #2 on:** September 24, 2003, 11:42:49 AM »

I dont think you can. I own a Ti89 and havent found anything in the manual yet.

I dont see the need for labeling subscripts in a calculator... but I'd have to see the whole problem to get a clear picture of what ya mean. If you're doing a series or sequence, throw it into sigma notation.

AWMac · « **Reply #3 on:** September 24, 2003, 11:44:49 AM »

The answer is "2 Weeks"......... Right Skuzzy? right?

Sandman · « **Reply #4 on:** September 24, 2003, 12:05:02 PM »

I think this is what you're looking for:

xroot(x,y)
func
x to the (1/y)
endfunc

rpm · « **Reply #5 on:** September 24, 2003, 12:11:11 PM »

You get to use a calculator on a test?

Sandman · « **Reply #6 on:** September 24, 2003, 12:12:18 PM »

You can also try this:

http://www.ticalc.org/archives/files/fileinfo/152/15293.html