Sharp EL-530V Random Function, Memory Calculations, Chain Calculations, Fraction Calculations

1	1		0.45
– + – = 4 @¨ + 5 @¨=
4	5
200	⋅ 32% = 200	* 32 @%	64.
150	÷ 300 = ? % 150	/ 300 @%	50.
200 + (200 ⋅ 32%) = 200		+ 32 @%	264.
300 – (300 ⋅ 25%) = 300		- 25 @%	225.

Random Function

This calculator has three random functions. Press N to exit.

Random Numbers

Apseudo-random number, with three significant digits from 0 up to 0.999, can be generated by pressing @`=. To generate the next random number, press =.

Random Integer

Integer number between 0 and 99 can be generated randomly by pressing @›=. To generate the next integer random number between 0 and 99, press =.

Random Dice

To simulate rolling dice, integer number between 1 and 6 can be generated randomly by pressing @fi=. To generate the next integer random number between 1 and 6, press =.

Memory Calculations

This calculator has two memory allocations: independent memory (M), and last answer memory (ANS). You will find them especially useful when combinations of calculations be- come complicated, or when applying the answer of previous calculation to another operations.

•Press NO to clear the independent memory (“M” symbol will disappear).

•After pressing R to recall a value stored in the memory, the value as displayed will be used in the calculation.

Independent memory (M)

O: Stores the result in the memory.

R: Recalls the value stored in the memory.

@;: Adds the result to the value in the memory.

	N 3 * 5 O	15.M
30 + (3 ⋅ 5) =	30 +R=	45.M
(3 ⋅ 5) ⋅ 4 =	R* 4 =	60.M
20+10–5=	N 20 + 10 - 5 O	25.M
121+13⋅2=	121 + 13 * 2 @;	147.M
+) 21⋅3–16=	21 * 3 -16 @;	47.M
(Total)	R	219.M
	NO	0.M

Last answer memory (ANS)

When = is pressed, the calculation result will automati- cally be stored in the last answer memory.

@? : Recalls the value stored in the last answer memory.

4 ÷ 5 = 0.8…(A) N 4 / 5 =	0.8
4 ⋅ (A) + 60 ÷ (A) = 4 *@?+ 60 /
@?=	78.2

Chain Calculations

•This calculator allows the previous calculation result to be used in the following calculation.

•The previous calculation result will not be recalled after entering multiple instructions.

• In the case of utilizing postfix functions (¿ , sin, etc.), you can perform a chain calculation even when the previous calculation result is cleared by the use of the N or @

ckeys.

	6+4 = ANS			N 6	+ 4	=	10.
	ANS + 5			+ 5	=		15.
	8 ⋅ 2 = ANS			8 * 2 =			16.
	ANS2			@L=			256.
	44+37 = ANS			44 + 37 =			81.
√			=				9.
		ANS		⁄=

Calculating the Highest Common Factor (H.C.F.) or Lowest Common Multiple (L.C.M.)

To calculate the H.C.F. or the L.C.M., the procedures are as follows:

What is the H.C.F.	N 24	24_
of 24 and 36?	@‹ 36	24HCF36_
	=	12.
What is the L.C.M.	N 15	15_
of 15 and 9?	@ˆ9	15LCM9_
	=	45.

•“Highest Common Factor” is synonymous with “Greatest Common Factor”, “Lowest Common Multiple” is with “Least Common Multiple”.

Calculating quotient and remainder

“: Calculates the quotient and remainder.

23 ÷ 5	N	23	@“ 5		23‘5_
(R: Remainder) =				4.	R3.
9.5 ÷ 4	9.5 @“ 4				9.5‘4_
	=			2.	R1.5
–32 ÷ (–5)	–	32	@“– 5		–32‘–5_
	=			6.	R–2.

•Pressing “ cannot be followed by pressing a key for another operation such as (+, –, ⋅, ÷), otherwise an error will result.

•The calculator can display a quotient or remainder up to 5 digits in length, including the “–” sign. If numbers longer than 5 digits are entered, normal division is performed.

FRACTION CALCULATIONS

Entering Fractions

• To enter fractions, use the following keys:

Ø: Places the symbol “/” between the numerator and the denominator.

∞: Separates the integer (whole number) part from the fractional part of a mixed number.