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Programming 18-25
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 row1 and row2 in the specified
matrix.
SWAPROW name;row1;row2:
HP 39gs English.book Page 25 Wednesday, December 7, 2005 11:24 PM