HP 39gII - Page 199

Lists 189
Example:
CONCAT({1,2,3},{4}) returns {1,2,3,4}.
Δ
LIST Creates a new list composed of the first differences of a
list, that is, the differences between the sequential
elements in the list. The new list has one less element than
the original list. The first differences for {x
1
, x
2
, x
3
,... x
n-1
,
x
n
} are {x
2
–x
1
, x
3
–x
2
,... x
n
–x
n–1
}.
ΔLIST(list1)
Example:
In Home, store {3,5,8,12,17,23} in L5 and find the first
differences for the list.
HS
{3,5,8,12,17,23S}
A
L 5
E
b
7 2
A
L 5
E
MAKELIST Calculates a sequence of elements for a new list.
Evaluates expression with respect to variable, as variable
takes on values from begin to end values, taken at
increment steps.
MAKELIST(expression,variable,begin,end,
increment)
The MAKELIST function generates a sequence by
automatically producing a list from the repeated
evaluation of an expression.