Casio ClassPad OS Version 3.03 manual 133

2-4-6

Function Calculations

	Problem				Use this keyboard:				Operation
				mth	abc	cat	2D
What is the sign of							Func		[signum] -3.4567w
–3.4567?				–1
(signum returns –1 for a
negative value, 1 for a
positive value, “Undefined” for
	A
0, and		for an
	A
imaginary number.)
What is the integer part of					CALC		Func		-3.4567 w
–3.4567?				–3
What is the decimal part of							Func		[frac] -3.4567w
–3.4567?			–0.4567
What is the greatest integer							Func		[intg] -3.4567w
less than or equal to
–3.4567?				–4
What is –3.4567 rounded to							Func		[fRound] -3.4567 ,2
two decimal places?			–3.46						w
What is –34567 rounded to							Func		[sRound] -34567 ,4
four significant digits?									w*
			–34570

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

kRandom Number Generator (rand, randList, 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.

uClassPad Operation

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

(2)Use the “rand” function or “randList” function to generate the random numbers.

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