During the course of the semester you will find it necessary to solve the quadratic equation on a regular basis. During our rather extended study of equilibrium you will be solving the quadratic equation on a daily basis in class, as well as on quizzes and exams. It is my understanding that newer TI calculators (TI-88, TI89) have a "Solve" function which permit direct input of second degree polynomials. If you own an older TI calculator it is not necessary to buy a new one. If your TI calculator is programmable you can use a routine found at one of the following pages to save you from the tedium of solving the quadratic equation "by hand." If you've never programmed your calculator before it's not too hard, and if you ask me nicely we'll find someone to help you.

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**Quadratic Formula on the TI-82/83/83plus (and maybe other TI's)**" - http://www.math.montana.edu/math105/QuadProg.html - "
**Programs for the TI-83plus**" - routines for the quadratic eqaution and other equations of interest to chemistry students - http://www.sciencegeek.net/APchemistry/ti_progs/ti_programs.shtml - "
**Quadratic Equations on the TI-83/84**" - http://oakroadsystems.com/math/tiquadra.htm - "
**TI-85/TI-86: Quadratic Formula program**" - http://college.hmco.com/mathematics/larson/precalculus_aga/3e/students/downloads/ti85_86.pdf - "
**TI Calculator Programs**" - for TI-83, TI-83+, TI-85, TI-86, and TI-89 - includes routines for the quadratic equation and Owner's Manuals - http://www.vw.vccs.edu/vwbensd/Calculator%20Programs_New.htm **"ticalc.org"**- seems to have all sorts of things of potential interest to chemistry students; just search "Chemistry" on the home page - http://www.ticalc.org/

Note: I cannot vouch for the correctness or content of any of these pages. This page does not constitute an endorsement of Texas Instruments or of its products.