Education Technology

Solution 34533: Algorithm Used to Calculate Xscl When Plotting a Histogram on the TI-84 Plus C Silver Edition.

How is Xscl calculated when plotting a histogram on the TI-84 Plus C Silver Edition?

When using the TI-84 Plus C Silver Edition, the Xscl option can be accessed by pressing [WINDOW]. Xscl is calculated using the following formula.

(Xmax - Xmin) / N

where

N = INT(1 + log(dim) / log(2))

For example, if plotting a histogram using the following list: {1,2,3,4,5,6,7,8,9,10}

Xmax = 10
Xmin = 1
dim (dimension of list) = 10

N = INT(1 + log(10) / log(2)) = 4

Xscl = (10 - 1) / 4 = 2.25

Please see the TI-84 Plus C Silver Edition guidebook for additional information.