HP -32S Owner's Manual page 181

D15 RCLx C
D16 - (AxExT) + (DxHxQ + (GxFxB) -
(GxExQ.
D17 RCL fl
D18 RCLx F
D19 RCLx H
D20 - (AxExI) + (DxHxQ + (GxFxB) -
(GxExQ - (AxFxH).
D21 RCL D
D22 RCLx B
D23 RCLx I
D24 - (AxExI) + (DxHxQ + (GxFxB) -
(GxExQ - (AxFxH) - (DxBxI).
D25 RTN Returns to the calling program or to
PRGM TOP.
Bytes and Checksum: 037.5, 152E
Flags Used: None.
Memory Required: 262 bytes: 134 for program, 128 for variables.
Program Instructions:
1. Key in the program routines; press [c] when done.
2. PressfxEQl Ato input coefficients (that is, A through L) of linear
equations.
3. Key in coefficient (A through L) at each prompt and press IR/s I.
4. Optional: to compute determinant of a 3 x 3 system, IXEQI D.
5. Compute solution to system of equations by pressing IXEQI S.
6. See value of X and press IR/SI to see the value of Y.
7. Press I R/S I to see the value of Z.
8. For a new case, go back to step 2.
Variables Used:
A through 7 Coefficients of equations.
/ through L Right-hand sides of equations.
X through Z Unknowns.
i Loop-control value (index variable).
12: Mathematics Programs 179