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:value!

! is used to indicates the Factorial operation. The expression returns the factorial of the value.

The largest factorial the TI-83 plus can handle is 69!, because 70! > 10^{100} The largest factorial the TI-89 can handle is 449!, because 450! > 10^{1000}

Location Edit

TI-84

  • Math
  • PROB
  • 4:!

TI-89

  • 2ND + 5 (MATH)
  • 7:Probability
  • 1:!

OR

  • 2ND + + (CHAR)
  • 3:Punctuation
  • 1:!

Example Edit

5! = 5*4*3*2*1 = 120

See AlsoEdit

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