H %
H is a multi-tap key that cycles through the following options:
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! |
A factorial, n!, is the product of the positive integers from 1 to n. The value of n must be a positive whole number { 69. When n = 0, n! = 1 |
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nCr |
Calculates the number of possible combinations given n and r, non-negative integers. The order of objects is not important, as in a hand of cards. |
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nPr |
Calculates the number of possible permutations of n items taken r at a time, given n and r, non-negative integers. The order of objects is important, as in a race. |
% displays a menu with the following options:
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rand |
Generates a random real number between 0 and 1. To control a sequence of random numbers, store an integer (seed value) | 0 to rand. The seed value changes randomly every time a random number is generated. |
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randint( |
Generates a random integer between two integers, A and B, where A { randint(integerA,integerB) |
Examples
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! |
4 H < |
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nCr |
52 H H 5 < |
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nPr |
8 H H H 3 < |
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Store value to |
5 L % |
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1 (Selects rand) < |
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rand |
% 1 < |
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randint( |
% 2 3 % ` 5 ) < |
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Problem
An ice cream store advertises that it makes 25 flavors of home made ice cream. You like to order three different flavors in a dish. How many combinations of ice cream can you test over a very hot summer?
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- 25 H H 3 < |
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You can choose from 2300 dishes with different combinations of flavors!