Sharp EL9900C EL-9900C - Page 57

Chapter 3: Basic Calculations - Basic Keyboard 3 rndCoin rndCoin [(number of trial)] Returns a specified number of random integers to simulate a coin flip: 0 (head) or 1 (tail). The size of the list (i.e., how many times the virtual coin is thrown) can be specified. (The same as rndInt (0, 1, number of times)) Example • Make the calculator flip a virtual coin 4 times. M C 3 ( 4 ) E 4 rndDice rndDice [(number of trial)] Returns specified number of random integers (1 to 6) to simulate rolling dice. The size of the list (i.e., how many times the die is thrown) can be specified. (The same as rndInt (1, 6, number of times)) Example • Make the calculator roll a virtual die 11 times. M C 4 ( 11 ) E 5 nPr Returns the total number of different arrangements (permuta- tions) for selecting "r" items out of "n" items. nPr = n! (n - r)! Example • How many ways can 6 persons be seated in a car with 4 seats? 6 M C 5 4 E 47