Sharp PW-E420 operation manual Prior to initiating calculations

Using the Calculator function

The built-in calculator in the Electronic Dictionary can perform twelve-digit arithmetic calculations with memory function. To access the Calculator function, press M7.

Prior to initiating calculations

•This product uses a comma ‘,’ as a decimal separator; a period is used as a thousand separator.

•Before performing any calculation, press @@^Bto clear the memory and the display.

•To start a calculation with a negative number, place a subtraction sign by pressing -at the beginning of the calculation.

•If you wish to correct a wrong entry, press !and re-enter the figure.

•In the calculation examples found in this section, indications and icons that may appear on the screen (‘=’, ‘M+’, ‘M–’, ‘+’, ‘–’, ‘⋅’, and ‘÷’) are abbreviated or are not shown. These icons appear to show you the interim result of calculations. For example, the ‘=’ icon appears on the screen when =or %is pressed, while icons such as ‘M+’ and ‘+’ appear after each corresponding key has been pressed.

•An ‘M’ is shown when a value other than 0 is put in the memory. To clear the content of the memory, press @twice. Note that the pressing of $or # also functions as =.

•Press to enter ‘=’. To input ‘,’ (decimal separator), press .

•An error message ‘E’ is displayed if:

•the integer section of a calculation result exceeds 12 digits

•the memory exceeds 12 digits

•an attempt is made to divide a number by zero.

Press !to clear the error condition.

Calculation examples

Example			Operation			Display
(–24) ⎟ 4 – 2 =			!-24 /4 -2 =			–8,
34 + 57 =			34 +57 =The second figure (57)			91,
45 + 57 =			45	=becomes the constant.		102,
			(Subtraction and division are performed in
			the same way as above.)
68 ⋅ 25 =			68 *25 =The first figure (68)			1.700,
68 ⋅ 40 =			40 =becomes the constant.			2.720,
What is 10% of 200?			200 *10 %			20,
What percentage is 9 of 36?			9 /36 %			25,
200 + (200 ⋅ 10 %) =			200 +10 %			220,
500 – (500 ⋅ 20 %) =			500 -20 %			400,
(43)2 =			4 *==*=			4.096,
1/8 =			8 /=			0,125
	25 ⋅	5 =	@@25 *5 $			M
						125,
–)	84 ⎟	3 =	84 /3 #			M
						28,
+)	68 + 17 =		68 +17	$		M
						85,
(Total) =			@			M
						182,
			@@12 +14 $			M
						26,
135 ⋅ (12 + 14) =			135 *@=			M
						3.510,
(12 + 14) ⎟ 5 =			@/5 =			M
						5,2
			@@^B			0,
123456789098 ⋅ 145 =			123456789098 *145 =			E
					17,9012344192
			!		17,9012344192
			(17,9012344192 ⋅ 1012 = 17901234419200)

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