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Casio 330 User Manual

Page 133

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20090601

Problem

Use this keyboard:

Operation

mth

abc

cat

2D

What is the sign of
–3.4567? –1
(signum returns –1 for a
negative value, 1 for a
positive value, “Undefined” for

0, and

A

¦Aµ

for an

imaginary number.)

Func

[signum] 3.4567 U

What is the integer part of
–3.4567? –3

CALC

Func

3.4567 U

What is the decimal part of
–3.4567? –0.4567

Func

[frac] 3.4567 U

What is the greatest integer
less than or equal to
–3.4567? –4

Func

[intg] 3.4567 U

What is –3.4567 rounded to
two decimal places?

–3.46

Func

[fRound] 3.4567 2
U

What is –34567 rounded to
four significant digits?

–34570

Func

[sRound] 34567 4
U*

* To round to 10 digits, specify “0” for the second argument.

I Random Number Generator (rand, randList, randNorm, randBin, RandSeed)

• The ClassPad random number generator can generate truly random numbers (non-

sequential random numbers) and random numbers that follow a particular pattern (sequential
random numbers). Using the “randList” function, you can generate a list whose elements
contain random numbers. There are nine different patterns for generation of sequential
random numbers. Use the “RandSeed” command to switch between non-sequential and
sequential random number generation, and to select the sequential random number
generation pattern.

S ClassPad Operation

(1) Use the “RandSeed” command to configure random number generation settings, if

required.

(2) Use the “rand”, “randList”, “randNorm”, or “randBin” function to generate the random

numbers.

2-4-6

Function Calculations