List Functions - HP 39G User Manual

List functions

Lists
Following are details of list functions. You can use them in
HOME, as well as in programs.
You can type in the name of
the function, or you can copy
the name of the function from
the List category of the
MATH menu. Press
(the alpha L
character key). This displays
the List category. Press
List functions have the following syntax:
• Functions have arguments that are enclosed in
parentheses and separated by commas. Example:
CONCAT(L1,L2). An argument can be either a list
variable name (such as L1) or the actual list. For
example, REVERSE({1,2,3}).
• If Decimal Mark in MODES is set to Comma, use
periods to separate arguments. For example,
CONCAT(L1.L2).
Common operators like +, –, ×, and / can take lists as
arguments. If there are two arguments and both are lists, then
the lists must have the same length, since the calculation pairs
up the elements. If there are two arguments and one is a real
number, then the calculation pairs the number with each
element of the list.
Example
5*{1,2,3} returns {5,10,15}.
Besides the common operators that can take numbers,
matrices, or lists as arguments, there are commands that can
only operate on lists.
, select a function, and press .
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