# Thread: Learning Curves and the TI84

1. ## Learning Curves and the TI84

hi

I am a new member of this forum - great stuff.

I was wondering if anyone knew of a way to solve learning curves on the ti84? I don't think there is but maybe someone can help.

Regards,

jamesk36

2. Originally Posted by jamesk36
hi

I am a new member of this forum - great stuff.

I was wondering if anyone knew of a way to solve learning curves on the ti84? I don't think there is but maybe someone can help.

Regards,

jamesk36
What is a learning curve (apart from the one that I've never been able to get to the summit of .....) ?

3. A learning curve is as it sounds the phenomenom of the time required to fulfill certain tasks decreases with increasing repetitions. The formula is Tn = T1 * n^b

where
Tn=Time for nth unith
T1 = Time for first unit
b= ln (learning percent) / ln 2

4. Originally Posted by jamesk36
A learning curve is as it sounds the phenomenom of the time required to fulfill certain tasks decreases with increasing repetitions. The formula is Tn = T1 * n^b

where
Tn=Time for nth unith
T1 = Time for first unit
b= ln (learning percent) / ln 2
Well, what you're asking is quite different to what appeared in your first post. From memory, you should be able to switch the graphing mode to sequence in mode and then enter the above expression. It's been a long time since I used a TI-84 (I upgraded to the TI-91 some time ago). The you can graph it, examine tables etc.

5. thanks.