| Simultaneous Equation Solver HP 33s |

| | I suggest **Cramers** **rule** for finding determinets and staying with only using 9 variables (actually 10, you should store the determinet as well, rather than trust the stack). |

| | The HP-20S has a 99-line built-in **Cramer's** **Rule** solver for 3x3 linear systems, which can also be used for 2x2 systems. |

| | Actually, I see now that the 11c has tow different programs--a **cramers** **rule** method ofr solving equations, as well as a matrix manipulation program. |

| www.hpmuseum.org /cgi-sys/cgiwrap/hpmuseum/archv014.cgi?read=70007 (1460 words) |