HP 48GII

4-60 Computer Algebra Commands
x
3
6x
2
11 x 6+++ x
2
5x 6++
Description: Returns the quotient part of the Euclidean division of two polynomials.
Access: Arithmetic, !Þ POLYNOMIAL !«
Input: Level 2/Argument 1: The numerator polynomial.
Level 1/Argument 2: The denominator polynomial.
Output: The quotient of the Euclidean division.
Flags: Exact mode must be set (flag –105 clear).
Numeric mode must not be set (flag -3 clear).
Radians mode must be set (flag –17 set).
Example: Find the quotient of the division of by .
Command:
QUOT(X^3+6*X^2+11*X+6, X^2+5*X+6)
Result: X+1
See also: REMAINDER, DIV2, IQUOT
QXA
Type: Command
Description: Expresses a quadratic form in matrix form.
Access: !Ø QUADF, !Ú MATRX
Input: Level 2/Argument 1: A quadratic form.
Level 1/Argument 2: A vector containing the variables.
Output: Level 2/Item 1: The quadratic form expressed in matrix form.
Level 1/Item 2: The vector containing the variables.
Flags: Exact mode must be set (flag –105 clear).
Numeric mode must not be set (flag -3 clear).
Radians mode must be set (flag –17 set).
Example: Express the following quadratic form in matrix form:
x
2
xy y
2
++
Command: QXA(X^2+X*Y+Y^2, [X,Y])
Result: {[[1,1/2][1/2,1]],[X,Y]}
See also: AXQ, GAUSS, SYLVESTER
RCLVX
Type: Command
Description: Returns the name or list of names stored in the current CAS variable. This is the same action
as recalling the contents of the variable VX in the CASDIR directory.
Access: Catalog, …µ
Input: None.
Output: Level 1/Item 1: The name of the current CAS variable.
See also: STOVX
REF
Type: Command
Description: Reduces a matrix to echelon form. This is a subdiagonal reduction (Gauss, not Gauss-Jordan).
Access: Matrices, !Ø LINEAR SYSTEMS
Input: A real or complex matrix.