Texas Instruments TI-89 Titanium Graphing Calculator

• Best Calculator Overall
  Unrivaled in many aspects, the TI-89 is the most advanced consumer calculator on the market. It provides a computer algebra system to solve mathemati...read more

  Unrivaled in many aspects, the TI-89 is the most advanced consumer calculator on the market. It provides a computer algebra system to solve mathematical expressions and perform derivatives symbolically. You will be hard-pressed to find a math problem you can't solve with this calculator. It does not support reverse Polish notation, although that's possible through a download via its integrated USB interface. Although a bit pricey, power users may not be satisfied with anything less....read less
• Best Graphing Calculator for Students
  TI's Motorola 68000-based TI-89 provides a built-in computer algebra system akin to computer software such as Mathematica and Maple.  It can simp...read more

  TI's Motorola 68000-based TI-89 provides a built-in computer algebra system akin to computer software such as Mathematica and Maple.  It can simplify mathematical expressions and perform partial fraction decomposition, useful for some intermediate calculus classes.  Basic algebra, systems of equations, limits, derivatives, and integrals are also possible and can be performed symbolically.  It can plot most anything including 2D, parametric, polar, and differential equations.  Unfortunately it is too powerful to be allowed on the ACT exam, although it works for the SAT and AP Calc.  It's a little more expensive than the others and if you're not past the ACT you probably don't need a calculator this advanced.  The TI-89 does support USB for downloading programs....read less

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