HP 48gII Graphing, 50g Graphing manual Egvl, Else, End, Matrix EVec Vector EVal

Example:	Find the polynomials for u, v, and c, where c is the greatest common divisor of a and b such that:
	u( x2 + 1) + v( x – 1) = c
Command:	EGCD(X^2+1,X-1)
Result:	{2,1,-(X+1)}
See also:	IEGCD, ABCUV
EGV	Command
Type:
Description:	Eigenvalues and Eigenvectors Command: Computes the eigenvalues and right eigenvectors for a
	square matrix.
	The resulting vector EVal contains the computed eigenvalues. The columns of matrix EVec
	contain the right eigenvectors corresponding to the elements of vector EVal.
	The computed results should minimize (within computational precision):
		A ⋅ EVec – EVec ⋅ diag( EVal)
		------------------------------------------------------------------------------
		n ⋅ A

where diag (EVal) denotes the n × n diagonal matrix containing the eigenvalues EVal.

Access:	!Ø LEIGENVECTOR EGV			( Ø is the leftshift of the		5key).
	!´MATRIX LEGV			( ´is the leftshift of the		Pkey).
Input/Output:
		Level 1/Argument 1		Level 2/Item 1		Level 1/Item 2
		[[matrix ]]A	→	[[matrix ]]EVec		[vector ]EVal
See also:	EGVL
EGVL	Command
Type:
Description:	Eigenvalues Command: Computes the eigenvalues of a square matrix.
	The resulting vector L contains the computed eigenvalues.
Access:	!Ø LEIGENVECTOR EGVL			( Ø is the leftshift of the		5key).
	!´MATRIX LEGVL			( ´is the leftshift of the		Pkey).
Input/Output:
		Level 1/Argument 1		Level 1/Item 1
		[[matrix ]]A		→	[vector ]EVal
See also:	EGV
ELSE	Command
Type:
Description:	ELSE Command: Starts false clause in conditional or errortrapping structure.
	See the IF and IFERR keyword entries for more information.
Access:	!°BRANCH IF ELSE			( °is the leftshift of the	Nkey).
Input/Output:	None
See also:	IF, CASE, DO, ELSE, IFERR, REPEAT, THEN, UNTIL, WHILE
END	Command
Type:
Description:	END Command: Ends conditional, errortrapping, and indefinite loop structures.

Full Command and Function Reference 373