Casio ClassPad 330, User Manual

Page: 133 / 954

20090601
Problem
U s e thi s 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
¦ A µ
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, randLi s t, 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 Cla ss Pad 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