HP 50G, User Manual

Page: 298 / 887

Page 9-21
3 - Use function ARRY to build the column vector
These three steps can be put together into a UserRPL program, entered as
follows (in RPN mode, still):
‚å„° @)TYPE! @OBJ @ 1 + ! ARRY@
`³~~rxc` K
A new variable,
@@RXC@@
, will be available in the soft menu labels after pressing
J
:
Press
‚ @@RXC@@
to see the program contained in the variable RXC:
<< OBJ 1 + RRY >>
This variable,
@@RXC@@
, can now be used to directly transform a row vector to a
column vector. In RPN mode, enter the row vector, and then press
@@RXC@@
. Try,
for example:
[1,2,3] ` @@RXC@@
.
After having defined this variable , we can use it in ALG mode to transform a
row vector into a column vector. Thus, change your calculator’s mode to ALG
and try the following procedure:
[1,2,3] ` J @@RXC@@ „ Ü „
î
, resulting in:
Transforming a column vector into a row vector
To illustrate this transformation, we’ll enter the column vector
[[1],[2],[3]]
in RPN mode. Then, follow the next exercise to transform
a row vector into a column vector:
1 - Use function OBJ
to decompose the column vector