War on Calculators

[Ron Ross]

The Ti-89 certainly can seem awkward (because it is), but the trig functions are a second shift function (still not the most efficient either) and you do not have to spell our SIN unless you really want to do things the hardest way.
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I used to be down on the Ti-89, but I have seen an expert 89 user show me how efficient he was with his 89. So despite Mike Morrow's comments and others here, I was forced to acknowledge it was a decent calculator. No, it is not superior nor even equal to an Hp 50G, but most people do not really use their high end calculators for high end calculating.
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In addition, if you do not learn RPN, the Hp 50G's algebraic mode isn't any better than using a Ti-89 aside from the trig functions are not second functions buried under a menu, and a more readable screen.