CASTI-89 TITANIUM · CALC89
seq(
Builds a list by evaluating an expression as a variable runs from a low to a high value.
Syntax
seq(Expr, Var, Low, High[, Step])
- Group
- List
- Arguments
- Takes the expression, the variable, the low and high value, and an optional step.
- Availability
- Included
- Menu path
- MATH ▸ List ▸ CAS ▸ seq(
Example
| Input | Result |
|---|---|
| seq(n^2,n,1,5) | {1,4,9,16,25} |
Typing seq(n^2,n,1,5) on the home screen and pressing ENTER returns {1,4,9,16,25}.
Keystrokes on the TI-89 Titanium
2NDMATH3▶×39
The same key sequence inserts seq( in Calc89, and the AI tutor shows it step by step on the on-screen keypad.
Related commands
- 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.
- deltaList(Returns a list of the differences between consecutive elements of a list.
- product(Returns the product of the elements of a list.