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[. . . ] 8 Page CALCULATION EXAMPLES . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 ERRORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 1
THE KEYBOARD
Solar cell
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OPERATING CONTROLS
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CONSTANT MODE SELECTOR: "K" position: The following constant functions will be performed. [. . . ] Positive Negative 5. Example: 5 POWER ON/CLEAR KEY: Clears the contents of the calculator, excluding the memory register. key whenever there are no display indicators, meaningless display · Press the figures or signs appear or the keys do not function despite sufficient light.
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0 00 to 9
NUMERAL KEYS: Used to enter numbers.
DECIMAL POINT KEY: Inputs the decimal place when depressed before or after a numeric entry. Example: 7 0. 7 MINUS EQUALS KEY: Subtracts the number from the contents of the calculation register. This key is also used to obtain the product/quotient in negative multiplication and division. PLUS EQUALS KEY: Adds the number to the contents of the calculation register. This key is also used to obtain the results in multiplication and division. MULTIPLE USE KEY: Used to perform mark-up, percent change and automatic add-on/discount. PERCENT KEY: Permits entry of actual percentages rather than their decimal equivalents for percent calculations. Example: Set decimal at 2 150 25 37. 50
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DIVISION KEY: Orders division. MULTIPLICATION KEY: Orders multiplication. 1ST MEMORY KEYS: These keys have access to the 1st memory register to store, calculate and recall numbers for further use. MEMORY PLUS : When depressed after a numeric key or a calculation this key adds the numbers or the result to the 1st memory register. : When depressed after a numeric key or a calculation this key MEMORY MINUS subtracts the numbers or the result from the 1st memory register. RECALLMEMORY : Displays the contents stored (the answer) in the 1st memory register on the display. It does not clear the contents, but recalls the answer to the display. CLEAR MEMORY : Clears the entire contents of the 1st memory register only. DISPLAY
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: 1st memory symbol Appears when a number is in the 1st memory. : Minus symbol Appears when a number is a negative. : Error symbol Appears when an overflow or an error is detected. : 2nd memory symbol Appears when a number is in the 2nd memory. 7
POWER SUPPLY
This calculator has a solar cell and is energized by electrical energy produced by the solar cell. The solar cell converts luminous energy directly into electrical energy by utilizing the photovoltaic effect. [. . . ] EXAMPLE: Day Sales
Monday . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $123. 15 Tuesday . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118. 00 Wednesday . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131. 58 Thursday . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]
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