TI-89 F.A.Q.

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What is the biggest whole number the TI-89 can handle?

 

The TI-89 can produce a whole number answer with as many as 630 digits. Try 4^40 in EXACT mode.
1208925819614629174706176 But you can calculate 4^1000 and higher, if you have the patience to scroll through all the digits.

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The TI-89 can produce a whole number answer with as many as 630 digits. Try 4^40 in EXACT mode.
1208925819614629174706176 But you can calculate 4^1000 and higher, if you have the patience to scroll through all the digits.

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Absolutely, and they don’t have to be in any standard form, either. Here’s an example:
Solve(3x+2y=12 and y=16+4x,{x,y}) x=-1.818 and y=8.727

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By going to mode, F2, and choosing EXACT instead of APPROXIMATE.

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Because the problem, as written, does not have an answer.

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Because you forgot to put parenthesis around your denominator. 55_mi/(2_hr), not 55_mi/2_hr.

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