HP 49g Graphing Calculator - Manual (Page 176)

Example:
Command:
Result:
See also:
Find the antiderivative of the following function, with
respect to y:
y + 3 y + 2
R I S C H ( Y ' ' 3 - 3 * Y + 2 , Y )
l / 3 * Y " 3 + 3 / 2 * Y " 2 + 2 * Y
IBP
INT
INTVX
RREF
Type: Command
Description: Reduces a matrix to row-reduced echelon form.
Access: Matrices. RfWSlS) LINEAR SYSTEMS
Input: A matrix.
Output: An equivalent matrix in row reduced echelon fonn.
Flags: Exact mode must be set (flag -105 clear).
Niuneric mode must not be set (flag -03 clear).
rreF
Type: Command
Description: Reduces a matrix to row-reduced echelon form.
Access: Matrices. RiRlttS)
linear systems
Input: A matrix.
Output: Level 2/Argument 1: The pivot points.
Level l/ArgTunent 2; An equivalent matrix in row
reduced echelon form.
Flags: Exact mode must be set (flag -105 clear).
Numeric mode must not be set (flag -03 clear).
Computer Algebra Commands Page 14-53