HP 38g Graphing Calculator - Manual (Page 171)

RANDMAT Creates random matrix with number of rows and columns you
specify in r o w s , c o lu m n s , and stores the result in n a m e
(name must be MO . . . M9). The entries will be integers ranging
from -9 to 9.
RANDMAT n a m e ; r o w s ;c o lu m n s
Exan®>le: RANDMAT M 2 ; 3 ; 4 :
EDITMAT М2:
Creates a Matrix in М2 with 3 rows and 4 columns; then
starts the Matrix Editor and displays matrix М2.
MS 1 2 3 4
1 -2 2 0
г 3 -5 -?
3
-Ч
г
s
*
-5
1^дшя™1а)И||К1иам11
REDIM Redimensions the specified matrix to s iz e . For a matrix, s iz e is a
list of two integers { n l,n 2 } . For a vector, s iz e is a list containing
one integer {n}.
REDIM n a m e ; {s iz e }
REPLACE Replaces portion of matrix or vector stored in n a m e with
another starting at position s ta r t. S ta r t for a matrix is a list
containing two numbers; for a vector, it is a single number.
Replace also works for lists and graphics.
REPLACE n a m e ; s ta r t;o b je c t
SCALE Multiplies the specified r o w jm m b e r of the specified matrix by
v a lu e .
SCALE n a m e ;v a lu e ;r o w _ n u m b e r
SCALEADD Multiplies the first specified row of the matrix in n a m e by v a lu e ,
then adds this result to the second specified row, and stores the
result in n a m e .
SCALEADD n a m e ; v a lu e ;r o w l; r o w 2
Programming 8-19