Texas Instruments TI-80 User Manual - Page 118
Getting Started: Generating a Sequence, Lists
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Getting Started: Generating a Sequence Getting Started is a fast-paced introduction. Read the chapter for details. Calculate the first eight terms of the sequence 1àAñ and display them in fraction form. The SEQ( function returns a list of values based on five arguments: an expression, a variable to be incremented, a beginning value, an ending value, and an increment. For this example, the beginning value is 1, the ending value is 8, and the increment is 1. 1. Begin on a blank line on the Home screen. Press 2 = to display the LIST OPS menu. 2. Press 4 to select SEQ(. The function name is copied to the cursor location on the Home screen. 3. Press 1 e ? A a b ? A b 1 b 8 b 1 d § 2 ¢. Press ¸ to generate the list and store it in L1. The list is displayed on the Home screen. 4. Use 9 to scroll the list to see all of the elements. 5. Press J 4 (to select 4FRAC). On the Home screen, ANS is typed automatically, followed by 4FRAC. 6. Press ¸ to show the sequence in fraction form. Use 9 to scroll the list to see all of the elements. 8-2 Lists