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:

Programming

18-25