HP HP-20S - Page 102

R/S
R/S
—4.4091
4.7576
Calculates x,.
Calculates x3.
Example 2: Find the determinant and inverse of the matrix stored
example 1.
Keys:
(xeqQ] D
1 [570] 0
0 [INPUT]
0 [xEq] A
R/S
R/S
0 (5T0) 0
1 (INPUT]
0 [xeq] A
R/S
R/S
0 [5T0)0
0 (INPUT]
1 xEQ) A
R/S
R/S
Display:
—264.0000
1.0000
0.0000
—0.1667
—0.5114
0.5303
0.0000
1.0000
—0.1667
—0.4432
0.3485
0.0000
0.0000
—0.3333
—0.7955
0.7879
100 7: Built-in Program Library
Description:
Calculates det A.
Stores iq;.
Enters ij;.
Enters i3; and calcu-
lates a4’
Calculates a,,’.
Calculates a3;".
Stores iy,.
Enters i5,.
Enters i3, and calcu-
lates aq,’.
Calculates a,,’".
Calculates a3,’.
Stores 13.
Enters i3,
Enters i33 and calcu-
lates a5’
Calculates a,3".
Calculates a33’.