TI-36X Pro Setting ε

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Performing differential calculations
1. Press ; G.
2. Specify the following parameters: function with variable x, value of
x, and minute interval (dx).
You do not need to specify the minute interval. If the minute interval
is not specified, it will automatically be set to 10−5 (while x = 0), or
| x | × 10−5 (while x ≠ 0).
page 2
http://sharpcalculators.com/images/Manua...manual.pdf