How much better is the 89 vs the 84?

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<p>I thought you were ■■■■■■■■ (no offense) but then I looked it up: [TI-Nspire&#8482</a>; CX CAS Handheld by Texas Instruments - US and Canada](<a href=“TI Products | Calculators and Technology | Texas Instruments”>TI Products | Calculators and Technology | Texas Instruments)</p>

<p>My reaction: Holy s–t. </p>

<p>(Note: The TI-89 already has 3-D graphing features, but definitely not color).</p>