HP 40gs - Page 218

14-36 Computer Algebra System (CAS)
L1=2L1+L2
ENTER
Reduction Result
then press ENTER. The following is then written to the
Equation Writer:
(x = −2) AND (y = −1)
Example 2
Type:
(2·X+Y+Z=1)AND(X+Y+2·Z=1)AND(X+2·Y+Z=4)
Then, invoke LINSOLVE and type the unknowns:
X AND Y AND Z
and press the ENTER key.
The following result is produced if you are in Step-by-step
mode (CFG, etc.):
L2=2L2−L1
ENTER
L3=2L3−L1
and so on until, finally:
Reduction Result
11 3
02– 2–
20 4
02– 2–
211 1–
112 1–
121 4–
211 1–
013 1–
121 4–
80 0 4
08 0 20–
00 8–4–
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