User Manual

1: Overview of Calculator Operations 15

More on Selected Math Operations

Universal Power

;

lets you raise a positive number to any power (2

or 2

(1/3)

, for

example). However, you can raise a negative number only to an

integer power or the reciprocal of an odd number. In either

case, the power can be either positive or negative.

Parentheses

Parentheses let you control the order in which a numeric

expression is evaluated. The portion of an expression enclosed

in parentheses is evaluated separately. Up to 15 levels of

parentheses are available, with up to 8 pending operations.

If an expression would end in a series of closed parentheses

you can omit pressing

. Press

to close all of the

parentheses automatically, evaluate the expression, and display

the end result. To see intermediate results, press

repeatedly.

Factorial

To compute the factorial of a displayed number, press

The number must be a positive integer



69.

Random Numbers

To generate a random real number between zero and one

(0<x<1) from a uniform distribution, press

To repeat a sequence of random numbers, you must first store a

“seed” value in the random number generator. To store a seed

value, key in an integer greater than zero and press

. This lets you recreate experiments by generating the

same series of random numbers.

Combinations

computes the number of combinations of n items taken

r at a time.

nCr

nr r

−×

()