Cascfg – HP 49g Graphing Calculator User Manual
Page 133
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AXQ
Type:
Description:
Access:
Input:
Output:
Flags:
Example:
Converts a square matrix into the associated quadratic
form.
Command
Command:
Result:
See also:
Convert, RSlfflf)
Level 2/Argiunent 1: An
nxn
matrix.
Level 1/Argument 2: A vector containing
n
variables.
Level 2/Itein 1: The corresponding quadratic fonn.
Level 1/Item 2: The vector containing the variables.
Exact mode must be set (flag -105 clear).
Niuneric mode must not be set (flag -03 clear).
Find the quadratic form, expressed in tenns of
x, y,
and
z,
associated with the following matrix:
3 6 0
2 4 1
1
1
1
_
A X Q ( [ [ 3 , 6 , 0 ] [ 2 , 4 , 1 ] [ 1 , 1 , 1 ] ] , [ X , Y , Z ] )
{3*X"'2+
I
Z] }
GAUSS
QXA
!*Y+Z) *X+(4*Y''2 + 2*Z*Y+Z^2 ) , [ X , Y ,
CASCFG
Type:
Command
Description: Restores the default CAS mode settings. This command is
equivalent to pressing
RESET
on the CAS Modes input
form.
Access:
CASCFG
Page 14-10
Computer Algebra Commands