HP 39g Graphing Calculator - Manual (Page 231)

FOR...TO...STEP
...END
BREAK
FOR name=start-expression TO end-expression
[STEP increment];
loop-clause END
FOR A=1 TO 12 STEP 1;
DISP 3 ; A ;
END
Note that the STEP parameter is optional. If it is omitted, a
step value of 1 is assumed.
Terminates loop.
BREAK
Matrix commands
ADDCOL
ADDROW
DELCOL
DELROW
EDITMAT
The matrix commands take variables M0-M9 as arguments.
Add Column. Inserts values into a column before
columnjmmber in the specified matrix. You enter the values
as a vector. The values must be separated by commas and the
number of values must be the same as the number of rows in
the matrix name.
ADDCOL name; [value 1 .....value,J ; columnjmmber
Add Row. Inserts values into a row before row jmmber in the
specified matrix. You enter the values as a vector. The values
must be separated by commas and the number of values must
be the same as the number of columns in the matrix name.
ADDROW name; [ valuej, value „ ] ; row jmmber
Delete Column. Deletes the specified column from the
specified matrix.
DELCOL name; columnjmmber
Delete Row. Deletes the specified row from the specified
matrix.
DELROW name; row jmmber
Starts the Matrix Editor and displays the specified matrix. If
used in programming, returns to the program when user
presses 03.
EDITMAT name
Programming 15-23