# Editb; Egcd; Egv; Egvl - HP 48gII Advanced User's Reference Manual

Graphing calculator.

## EDITB

Type:
Command
Description: Edit Best Command: Opens the specified object in the most suitable editor. For example, if you
use a matrix as the specified object, the command opens it in Matrix Writer.
˜
Access:
I
EDIT
Input/Output: None
EDIT, VISIT

### EGCD

CAS:
From polynomials a and b, returns polynomials u, v, and c, where au+bv=c, c is the GCD of a & b.

### EGV

Type:
Command
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):
where diag (EVal) denotes the n × n diagonal matrix containing the eigenvalues EVal.
!Ø L
Access:
Input/Output:

### EGVL

EGVL
Type:
Command
Description: Eigenvalues Command: Computes the eigenvalues of a square matrix.
The resulting vector L contains the computed eigenvalues.
!Ø L
Access:
Input/Output:
EGV

### ELSE

Type:
Command
Description: ELSE Command: Starts false clause in conditional or error-trapping structure.
Access:
A EVec EVec diag EVal
------------------------------------------------------------------------------ -
EIGENVECTOR EGV
L
MATRIX
EGV
Level 1/Argument 1
[[matrix ]]
A
EIGENVECTOR EGVL
L
MATRIX
EGVL
Level 1/Argument 1
[[matrix ]]
BRANCH IF ELSE
n A
( Ø is the left-shift of the 5key).
( ´ is the left-shift of the Pkey).
Level 2/Item 1
[[matrix ]]
( Ø is the left-shift of the 5key).
( ´ is the left-shift of the Pkey).
A
( °is the left-shift of the Nkey).
Full Command and Function Reference 3-55
Level 1/Item 2
[vector ]
EVec
Level 1/Item 1
[vector ]
EVal
EVal