Factorial On Ti 84. The TI-83 is on exception to this rule. Frequently students mistakenly try to use the inverse key for subtraction.
Did you know you can type an exclamation point on your TI-84 Plus calculator. Almost every scientific calculator has a built in factorial. Enter the number which you need the factorial of.
Pressing ENTER gets you the correct solution.
The permutation key nPr is located under the math probability menu. 10 MATH PRB 4 Permutations. And press to choose the factorial symbol it looks like an exclamation point. N1n until n is reduced to either 0 or -12.
