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Sharp QS2770H Support Question

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Question posted by blivingston on June 30th, 2017

My Calculator Sometimes Adds Numbers 1 Cent Different When Adding. Why, Is Ther

My QS 2770H adds the same numbers differently off 1 cent each time.

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Answer #1: Posted by Odin on June 30th, 2017 1:45 PM

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Odin

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This is actually a common error in some calculators, which is also found in at least some versions of the Windows program CALC.EXE. For an attempt at an explanation, see http://bit.ly/2sq0A1h, which also suggests a test to see if the error might kick in.

Hope this is useful. Please don't forget to click the Accept This Answer button if you do accept it. My aim is to provide reliable helpful answers, not just a lot of them. See https://www.helpowl.com/profile/Odin.

Related Sharp QS2770H Manual Pages

QS-1760H, QS-2760H, QS-2770H Operation Manual - Page 2

...been tested and found to comply with the limits for help. This equipment generates, uses, and can be easily accessible. Connect the equipment into an outlet on , the... determined by turning the equipment off and on a circuit different from that to which can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause undesired operation. ...

QS-1760H, QS-2760H, QS-2770H Operation Manual - Page 4

... SPECIFIED IS DANGEROUS AND MAY RESULT IN A FIRE OR OTHER TYPE OF ACCIDENT CAUSING DAMAGE. Your SHARP calculator is acknowledged by misuse and/or malfunctions of the SHARP electronic calculator, model QS-1760H/ 2760H/2770H. Since this equipment, use solvents or a wet cloth. 3. If you for any incidental or consequential economic or property damage caused...

QS-1760H, QS-2760H, QS-2770H Operation Manual - Page 5

...calculator is ready for operation. PRINT MODE SELECTOR: "P" position: The calculator functions as a print/display calculator. (Print mode) "•" position: The calculator functions as a display calculator. (Non-print mode) Mode change print: When changing the print... the following print will be printed.) 1. "•" position: Neutral, GT OFF " " position: • Enter the adding tax rate...

QS-1760H, QS-2760H, QS-2770H Operation Manual - Page 6

Effective only in addition and subtraction: Use of the A/+ mode permits addition and subtraction of numbers without an entry of the decimal point. Set decimal to 3 Enter 123456 Tape prints Tape prints 1,234.56 + 123.456 + Use of the , , and keys will automatically override the Add mode and decimally correct answers will be stored. When the A/+ mode...

QS-1760H, QS-2760H, QS-2770H Operation Manual - Page 7

... SELECTOR: "IC±" position: 1) The counter will count the number of the key will obey the decimal setting. EXAMPLE: Set A/+- • -A/x to A/x Set decimal to 2 Enter 7 3 Tape prints 7. × 0.03 = 0.21 Note: Use of times that the calculation results have been stored in addition and subtraction. number entered following or key and before (or , , , , ) key will...

QS-1760H, QS-2760H, QS-2770H Operation Manual - Page 8

... when the memory is printed with "×I" and "÷I" respectively. If the count exceeds the maximum, the counter will automatically remember the second number entered (the divisor) and the instruction. Division: The calculator will recount from the memory. FIRST FACTOR ACCUMULATION SELECTOR: (Only QS-2770H) "FΣ" position: The first factor is automatically added to ±999...

QS-1760H, QS-2760H, QS-2770H Operation Manual - Page 9

... get subtotal(s) of or key. This key is used to print out numbers not subjects to the right together with the symbol "◊" and the calculation may be continued. By pressing this key even in the Non-print mode, the displayed number is printed with the symbol " ". TOTAL KEY: Prints the total of this key is pressed right...

QS-1760H, QS-2760H, QS-2770H Operation Manual - Page 10

... SECOND MEMORY PLUS KEY DATE KEY: (only QS-2770H) Can be used to calculate the average. - 8 - This key is also used to clear an overflow error caused by an entry. AVERAGE KEY: Used to obtain the results in multiplication and division and prints the product/quotient with a "-" symbol and subtracts the number from the contents of a function key...

QS-1760H, QS-2760H, QS-2770H Operation Manual - Page 11

... USE KEY: Used to a negative value. TAX-INCLUDING KEY PRE-TAX KEY - 9 - the calculation result will first obtain a square root of an absolute number of a number (i.e., positive to negative or negative to positive). SQUARE ROOT KEY: To obtain a square root of a negative number, this calculator will then be converted to perform mark-ups, percent change and automatic add...

QS-1760H, QS-2760H, QS-2770H Operation Manual - Page 12

... or other error is detected. • : Grand total memory symbol Appears when a number is in Second memory. - : Minus symbol Appears when a number is negative. DISPLAY Display format: (QS-1760H) (QS-2760H) (QS-2770H) Calculation display (main): Item counter display (sub): Symbols: : First memory symbol Appears when a number has been stored in First memory. : Second memory symbol Appears when...

QS-1760H, QS-2760H, QS-2770H Operation Manual - Page 13

... at OFF position. Remove the printer cover by using .) 2. Make sure that the print wheel has stopped. 3. Insert the right reel securely. 9. Replace the printer cover. 11. Take up any slack by manually turning one of the calculator. (Fig. 1) 4. Remove the paper roll from the calculator. (Tear the paper and remove it from the...

QS-1760H, QS-2760H, QS-2770H Operation Manual - Page 14

... bottom). (Fig. 3) 4. Lift the paper holder up. (Fig. 1) 2. Insert the paper roll from the left side of the paper into the opening directly behind the print mechanism. (Fig. 4) 5. Press the paper feed key and feed the paper under the edge of the paper roll 3 to 5 cm. (Do not fold it slantwise...

QS-1760H, QS-2760H, QS-2770H Operation Manual - Page 15

... be displayed and all keys will be printed to 11 decimal places, regardless of more than 12 digits or 11 decimals. (QS-2760H/2770H) This error can still be continued. If an "E" with any number is divided by zero. (Ex. 5 0 ) DECIMAL SYSTEM Input override decimal feature The calculator operates on a principle of an answer exceeds...

QS-1760H, QS-2760H, QS-2770H Operation Manual - Page 16

... (display), 16 digits (printing) (QS-1760H) 13 digits (display), 18 digits (printing) (QS-2760H) 13 digits (main display) + 4 digits (sub display), 18 digits (printing) (QS-2770H) Automatic decimal point positioning by preset decimal selector (0-1-2-3-4-5-6-F) with Add mode (A/+, A/x) Four arithmetic calculations, constant multiplication and division, power calculation, add-on the power. - 14...

QS-1760H, QS-2760H, QS-2770H Operation Manual - Page 43

GRAND TOTAL CALCULATION / CÁLCULO DE TOTAL GLOBAL EXAMPLE: EJEMPLO: 100 + 200 + 300 = ᶃ +) 300 + 400 + 500 = ᶄ +) 500 - 600 + 700 = ᶅ Grand total / Total global ᶆ (1) (2) (3) (4) 100 ...

QS-1760H, QS-2760H, QS-2770H Operation Manual - Page 44

...367. I 3,037. I 72. I 576. I 367. × 168. ◊I 125. MEMORY CALCULATIONS / CÁLCULOS CON MEMORIA EXAMPLE (1): EJEMPLO (1): 46 × 78 = ᶃ +) 125 &#...46. 3,588. I 168. = 61,656. *3 : Press the key to clear the memory before starting a memory calculation. *3 : Apretar la tecla para cancelar la memoria antes de empezar a efectuar un cálculo con memoria. - 42...

QS-1760H, QS-2760H, QS-2770H Operation Manual - Page 48

TX 38. - 762. - 46 - EXAMPLE 3: EJEMPLO 3: Calculate the total amount for the sum of $800 in which a 5% tax has been included. TX 483. 483. + 983. ... ya incluido y $460 con el impuesto del 5% a añadir. (1) (2) (3) (4) 500 500. 460 483. 983. 500. + 460. 23. EXAMPLE 4: EJEMPLO 4: Calculate the before-tax value of $500 with tax already included and $460 with 5% tax to be...

QS-1760H, QS-2760H, QS-2770H Operation Manual - Page 49

...the "P" position unless otherwise specified. Print mode selector should be in dollars and cents, use the "Add Mode." of values EXAMPLE: If...add mode, item count mode and first factor accumulation selectors (QS-2770H only) should be in each example. FORMULA: Average = Total of the values Number of items Total sales 131.20 AG Average 131.20 000 * QS-2770H only - 47 - AVERAGING Calculate...

QS-1760H, QS-2760H, QS-2770H Operation Manual - Page 50

...= number of years × 4 EXAMPLE: If P = $6,150 i = 5% annum ÷ 4 periods = 0.0125 n = 16 (4 years × 4) Then 6,150 (1.0125)16 .=. $7,502.32 (New Balance) (QS-2760H/2770H): OPERATION DISPLAY PRINT .05... 48 - rate 4 4. = 0.0125 Quarterly int. Calculate the quarterly interest rate. 2. COMPOUND INTEREST Calculate the new balance on a deposit which is compounded quarterly for...

QS-1760H, QS-2760H, QS-2770H Operation Manual - Page 51

rate 4. = 0.0125 Quarterly int. (QS-1760H): OPERATION .05 4 1 DISPLAY 0.05 0.0125 0.0125 1.0125 1.0125 1.02515625 1.02515625 1.050945336 1.050945336 1.104486099 1.104486099 6150 1.219889542 1.219889542 7,502.320683 PRINT 0.05 ÷ Annual int. rate 0.0125 + 1. + 1.0125 ◊ (1 + i) 1.0125 × 1.0125 = 1.02515625 (1 + i)2 1.02515625 × 1.02515625 = 1.050945336 (1 + i)4 1....