HP HP-15C

Keystrokes
Section 4: Using Matrix Operations 1 59
Display
0.3923
0.6961
1.0000
1.0000
Eigenvector for X3.
Deactivates User mode.
If matrix A is no larger than 3X3, this program can be included
with the previous eigenvalue program. Since the eigenvalue
program modifies matrix A, the original eigenvalues must be
saved and the original matrix reentered in matrix A before
running the eigenvector program. The following program can be
added to store the calculated eigenvalues in matrix E.
Keystrokes Display
127-42,21,15
128-45,23,11
129- 44 0
130- 1
131-42,23,15
132-42,21, 8
133- 45 0
134- 36
135-45,43,11
136- 45 0
137- 1
138-44,43,15
139-42, 5, 0
140- 22 8
141-42,16, 1
142- 4332
Dimensions E to n X 1.
Recalls diagonal element.
Stores an i
Resets R0 = R: = 1.
Run mode.
Labels used: E and 8.
Registers used: no additional registers.
Matrices used: A (from previous program) and E (eigenvalues).
To use the combined eigenvalue, eigenvalue storage, and
eigenvector programs for an A matrix up to 3 X 3:
1. Execute the eigenvalue program as described earlier.