Hello,Originally Posted byRanger SVO

1. Set the TI84 into the SEQ-mode.

2.

nMin = the smallest value for n, best would be to start with n = 1

u(n) = that's OK. You know, that you have to type:

1.015825*(2nd)(7)((APPS)-1)

The bold text in brackets mean the labels of the keys of the TI84

u (nMin) If I understand the "ui 1 = 4000" right then it is the start value.

Afterwards you have to adjust the window:

nMIN = 1

nMax = 50

PlotStart = 1

PlotStep = 1

Xmin = 16

Xmax = 16

Xscl = 1

Ymin = 3500

Ymax = 8000

Yscl = 500

Then I get a line. I don't knowwhatyou wanted to draw, but finally the TI84 draws at least something.

I hope this will help a little bit further.

Greetings

EB