Other Functions (%, ', x2, x–1, x!, abs, ￿, signum, int, frac, intg, fRound, sRound)

 

Problem

 

 

 

 

 

Operation

 

What is 12% of 1500? (180)

 

 

1500 * 12 &w

 

 

 

 

 

 

 

 

 

 

 

 

 

 

What percent of 880 is 660? (75%)

 

 

660 / 880 &w

 

 

 

 

 

 

 

 

 

 

 

 

 

What value is 15% greater than 2500? (2875)

2500 *( 1 + 15 &

 

 

 

 

 

 

 

 

 

 

 

 

 

 

What value is 25% less than 3500?

(2625)

3500 *( 1 - 25 &

 

 

 

 

 

 

 

 

 

 

 

 

 

'2 + '5 = 3.65028154

 

 

5 2 e+5 5 w

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(3 + i) = 1.755317302 + 0.2848487846i

Change to the Complex mode (“Cplx” indicated on

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the status bar).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5 3 +0w

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(–3)2= (–3) ⋅ (–3) = 9

 

 

(- 3 )xw

 

–32= –(3 ⋅ 3) = –9

 

 

- 3 xw

1

 

 

 

 

= 12

 

 

 

( 3 X- 4 X)Xw

 

 

1

–

1

 

 

 

 

or

 

 

 

 

 

 

 

 

 

 

 

 

3

4

 

 

 

 

 

 

 

 

N 1 cN 1 c 3 e-N 1 c 4 w

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8! (= 1 ⋅ 2 ⋅ 3 ⋅ … ⋅ 8) = 40320

 

 

8 !w

 

 

 

 

 

 

 

 

 

 

 

 

 

What is the absolute value of the common

4V 10 eN 3 c 4 w

 

logarithm of

3

?

 

 

 

 

 

or L4V 3 / 4 w

 

4

 

 

 

⎜log (

 

3

)⎟ = 0.1249387366

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8￿40° × 5￿35°

 

 

Change to the Degree mode (“Deg” indicated on the

 

￿(8,40) × ￿(5,35) = ￿(40,75)

 

 

status bar).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

~ 8 , 40 )*~ 5 , 35 )w

 

 

 

 

 

 

 

 

 

 

 

 

 

 

What is the sign of –3.4567? (–1)

 

 

[signum] - 3.4567 w

 

(signum returns –1 for a negative value, 1 for a

 

 

positive value, “Undefined” for 0, and

￿￿

for an

 

 

 

 

imaginary number.)

￿￿￿

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

What is the integer part of –3.4567?

(–3)

:- 3.4567 w

 

 

 

 

 

 

 

 

 

 

 

 

 

What is the decimal part of –3.4567?

(–0.4567)

[frac] - 3.4567 w

 

 

 

 

 

 

 

 

 

 

 

 

What is the greatest integer less than or equal to

[intg] - 3.4567 w

–3.4567?

(–4)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

What is –3.4567 rounded to two decimal places?

[fRound] - 3.4567 , 2 w

(–3.46)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

What is –34567 rounded to four significant digits?

[sRound] - 34567 , 4 w*

(–34570)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

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).

uTo switch between non-sequential and sequential random number generation

1.Use the “RandSeed” command to configure random number generation settings. See “RandSeed Command” on page 50.

2.Use the “rand”, “randList”, “randNorm”, or “randBin” function to generate the random numbers.

Chapter 2: Main Application

48