HP Prime Graphing Calculator User Manual

Page 546

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542

Programming

DELROW

Syntax: DELROW(name ,row_number)
Deletes row row_number from matrix name.

EDITMAT

Syntax: EDITMAT(name)
Starts the Matrix Editor and displays the specified matrix.
If used in programming, returns to the program when user
presses

. Even though this command returns the

matrix that was edited, EDITMAT cannot be used as an

argument in other matrix commands.

REDIM

Syntax: REDIM(name, size)
Redimensions the specified matrix (name) 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). Existing
values in the matrix are preserved. Fill values will be 0.

REPLACE

Syntax: REPLACE(name, start, object)
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, graphics, and

strings. For example, REPLACE("123456", 2, "GRM") ->
"1GRM56"

SCALE

Syntax: SCALE(name, value, rownumber)
Multiplies the specified row_number of the specified
matrix by value.

SCALEADD

Syntax: SCALEADD (name, value, row1, row2)
Multiplies the specified row1 of the matrix (name) by
value, then adds this result to the second specified row2
of the matrix (name).

SUB

Syntax: SUB (name, start, end)
Extracts a sub-object—a portion of a list, matrix, or
graphic—and stores it in 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(M1{1,2},{2,2})

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