Function Obj; Function List - HP 49g+ User Manual

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LIST will be available in soft menu keys A, B,
OBJ ,
ARRY, and
and C. Function DROP is available by using „°@) S TACK @DROP.
Following we introduce the operation of functions OBJ ,
LIST,
ARRY, and
DROP with some examples.

Function OBJ

This function decomposes an object into its components. If the argument is a
list, function OBJ
will list the list elements in the stack, with the number of
elements in stack level 1, for example: {1,2,3} ` „°@) T YPE! @OBJ @
results in:
When function OBJ
is applied to a vector, it will list the elements of the
vector in the stack, with the number of elements in level 1: enclosed in braces
(a list). The following example illustrates this application: [1,2,3] `
„°@) T YPE! @OBJ @ results in:
If we now apply function OBJ
once more, the list in stack level 1:, {3.}, will
be decomposed as follows:
Function
LIST
This function is used to create a list given the elements of the list and the list
length or size. In RPN mode, the list size, say, n, should be placed in stack
level 1:. The elements of the list should be located in stack levels 2:, 3:, ...,
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