CASTI-89 TITANIUM · CALC89
deltaList(
Returns a list of the differences between consecutive elements of a list.
Syntax
deltaList(list)
- Group
- List
- Arguments
- Takes one list.
- Availability
- Included
- Menu path
- MATH ▸ List ▸ CAS ▸ deltaList(
Example
| Input | Result |
|---|---|
| deltaList({1,4,9,16}) | {3,5,7} |
Typing deltaList({1,4,9,16}) on the home screen and pressing ENTER returns {3,5,7}.
Keystrokes on the TI-89 Titanium
2NDMATH3▶×33
The same key sequence inserts deltaList( in Calc89, and the AI tutor shows it step by step on the on-screen keypad.
Related commands
- product(Returns the product of the elements of a list.
- seq(Builds a list by evaluating an expression as a variable runs from a low to a high value.
- SortASorts a list variable in ascending order and stores the result back in the variable.
- SortDSorts a list variable in descending order and stores the result back in the variable.
- sum(Returns the sum of the elements of a list.
- cumSum(Returns a list of the running totals of a list's elements.