
5. Enter the step size of the increment. The number of elements
generated is the integer portion of
(final —initial)
step
+ 1.
17
6. Execute SEQ .
Example: Generate a list of squares from 23 to 27.
Step 1: Enter the function, the variable name, the initial value, and
the final value.
Q QO @ X (IntIE) CD
@ X(ENTER 123(ENTER)27
(ENTER)
r HDME >
4:
'SQCX)'
3:
■H'
2:
23
1:
27
■QiiiBiiQiHii3izRniaii:i;tcMiBnajnia4Ami
Step 2: Enter the step size, and generate the sequence.
1 (ENTER )(pM1 list
PROC (NXT) SEiJ
1: £ 529 576 625 676
729 }
To find the sum of a finite sequence expressed as a list:
1. Enter the list.
2. Execute (MTH)
. I S 1 .
You can also find the sum of a finite sequence using the X function in
an algebraic expression—see page 7-5.
To find the product of a finite sequence expressed as a list;
1. Enter the list.
2. Press (MTH ) L I S ! ti’.L I S !'.
To find the set of fires t'ifierences of a finite sequence:
1. Enter the sequence as a list.
2. Press (MThI L I ST fN)an i L 1ST.
The first differences for the list C x\ x-i ... T is defined as
C X2-XX . . . xn-x^_i >.
17-8 Lists and Sequences
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