HP 39g+ User Manual
Page 230
15-24
Programming
RANDMAT
Creates random matrix with a specified number of rows and
columns and stores the result in name
(name must be
M0...M9
). The entries will be integers
ranging from –9 to 9.
RANDMAT
name
;
rows
;
columns
REDIM
Redimensions the specified matrix or vector to size. For a
matrix, size is a list of two integers {n1,n2}. For a vector, size
is a list containing one integer {n}.
REDIM
name
;
size
REPLACE
Replaces portion of a matrix or vector stored in name with an
object starting at position start
.
start
for a matrix is a list
containing two numbers; for a vector, it is a single number.
Replace also works with lists and graphics.
REPLACE
name
;
start
;
object
SCALE
Multiplies the specified row_number of the specified matrix
by value.
SCALE
name
;
value
;
rownumber
SCALEADD
Multiplies the row of the matrix name by value, then adds this
result to the second specified row.
SCALEADD
name
;
value
;
row1
;
row2
SUB
Extracts a sub-object—a portion of a list, matrix, or graphic
from object—and stores it into name. start and end are each
specified using a list with two numbers for a matrix, a number
for vector or lists, or an ordered pair, (X,Y), for graphics.
SUB
name
;
object
;
start
;
end
SWAPCOL
Swaps Columns. Exchanges column1 and column2 of the
specified matrix.
SWAPCOL
name
;
column1
;
column2
SWAPROW
Swap Rows. Exchanges row1and row2 in the specified
matrix.
SWAPROW
name
;
row1
;
row2