Question about Sharp EL-1801C Calculator

Hi,

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Posted on Jan 02, 2017

SOURCE: EL 1801V - how to set time/date?

To change the date, enter the date in MM.DD.YY format, pressing the decimal key between the month and day (will show as a decimal on the display) and the day and year (will show as a dash on the display). Then, press the Time/Date key (the one that looks like a clock and a calendar). The new date will show on the display. Note that if the month is less than 10, you do need to press the 0 (zero) key for the first digit, even though it will not show on the display. To change the time, enter the time in 24-hour HH.MM format, pressing the decimal key between the hour and minute. Then, press the Time/Date key. The new time will show on the display. Note that if the hour is less than 10, you do need to press the 0 (zero) key for the first digit, even though it will not show on the display. Hope this helps! :)

Posted on Dec 04, 2008

SOURCE: how do I use sharp EL 531W to solve quadratic equations?

Hello,

This calculator does not have a program to which you give the equation, and which returns the solutions. Sorry. You have to use the formulas you learned.

Let the equation be ax^2 +bx+c=0

You compute the discriminant Callit disc.**disc= (b^2-4*a*c)**

1. If discriminant is larger than zero you have two solutions. Let us call them x1 and x2.

Then** x1=(-b+square root of disc)/(2*a)**

and **x2= (-b-square root of disc)/(2*a)**

2.** If disc=0** , square root of disc =0 and** x1=x2=-b/(2*a)**

3. **If disc is negative, there are no real solutions.**

To find the solutions you **replace a, b, and c **by their numerical values, to calculate disc, its square root, and calculate X1 and X2.

Hope it helps.

Posted on Sep 17, 2009

SOURCE: how to solve quadratic equation in SHARP EL-531WH

Hello,

This calculator does not have a program to which you give the
equation, and which returns the solutions. Sorry. You have to use the
formulas you learned.

Let the equation be ax^2 +bx+c=0

You compute the discriminant Call it disc.**disc= (b^2-4*a*c)**

1. If discriminant is larger than zero you have two solutions. Let us call them x1 and x2.

Then** x1=(-b+square root of disc)/(2*a)**

and **x2= (-b-square root of disc)/(2*a)**

2.** If disc=0** , square root of disc =0 and** x1=x2=-b/(2*a)**

3. **If disc is negative, there are no real solutions.**

To find the solutions you **replace a, b, and c **by their numerical values, to calculate disc, its square root, and calculate X1 and X2.

Hope it helps.

Posted on Sep 17, 2009

SOURCE: how to replace ink roll for sharp calculator

Here is the manual on link below on page 5 tells you how to replace.

http://dl.owneriq.net/e/ea19126b-3714-4b3d-bce5-712458b60c6d.pdf

Good luck and please rate 4 thumbs for the free answer

Posted on Mar 14, 2010

Could it be that it has adding machine logic and not calculator logic?

Let's do an experiment. 3+ 3+ 5-. Is the answer 1?

If so, it is working like an adding machine. Every number you enter is considered positive or negative and it keeps a running total.

Let me know if you have any questions.

Good luck.

Paul

Let's do an experiment. 3+ 3+ 5-. Is the answer 1?

If so, it is working like an adding machine. Every number you enter is considered positive or negative and it keeps a running total.

Let me know if you have any questions.

Good luck.

Paul

Feb 25, 2015 | Sharp "el-2630piii desktop calculator,...

Hello, Check to see if you have power to the electrice socket. If you then check on back of printer for fuse and check it. If that is ok then you will have too take in for repair.

May 28, 2014 | Sharp EL-1801C Calculator

Press [2nd F] [x: multiply sign] to enter Hexadecimal base calculation. The digits are 0,1, ...9, A, B, C,D,E, and F.

Enter a number in Hex, press the + sign to perform and addition or - for a subtraction. Press the = sign to obtain the result.

Enter a number in Hex, press the + sign to perform and addition or - for a subtraction. Press the = sign to obtain the result.

Feb 19, 2012 | Sharp Office Equipment & Supplies

Enter the desired number for the tax rate... followed by hitting the "STR" button... followed by hitting the "Tax+" button. Here is a link to the manual for the Sharp EL-1801C. http://bit.ly/lf3edL

Jun 19, 2011 | Office Equipment & Supplies

OFF • P P•IC

ON POWER SWITCH; PRINT / ITEM COUNT MODE SELECTOR:

"OFF": Power OFF

"•": Power ON. Set to the non print mode.

"P": Power ON. Set to the print mode.

"P•IC": Power ON. Set to the print and item count mode.

1) For addition or subtraction, each time is pressed, 1 is added to the item

counter, and each time is pressed, 1 is subtracted.

• The count is printed when the calculated result is obtained.

• Pressing of , clears the counter.

2) When the grand total/rate setting mode selector is in the ON position (GT), the

counter will count the number of times that the calculation results have been

stored in the grand total memory. To print and clear the count, press the key.

3) The memory item counter will count the number of times that the key has

been pressed in the addition.

Note: • Each time the key is used in the subtraction, 1 will be subtracted from

the count.

• The count is printed when the memory is recalled.

• Pressing of the key clears the counter.

Note: The counter has a maximum capacity of 3 digits (up to ±999). If the count exceeds

the maximum, the counter will recount from zero.

ON POWER SWITCH; PRINT / ITEM COUNT MODE SELECTOR:

"OFF": Power OFF

"•": Power ON. Set to the non print mode.

"P": Power ON. Set to the print mode.

"P•IC": Power ON. Set to the print and item count mode.

1) For addition or subtraction, each time is pressed, 1 is added to the item

counter, and each time is pressed, 1 is subtracted.

• The count is printed when the calculated result is obtained.

• Pressing of , clears the counter.

2) When the grand total/rate setting mode selector is in the ON position (GT), the

counter will count the number of times that the calculation results have been

stored in the grand total memory. To print and clear the count, press the key.

3) The memory item counter will count the number of times that the key has

been pressed in the addition.

Note: • Each time the key is used in the subtraction, 1 will be subtracted from

the count.

• The count is printed when the memory is recalled.

• Pressing of the key clears the counter.

Note: The counter has a maximum capacity of 3 digits (up to ±999). If the count exceeds

the maximum, the counter will recount from zero.

Dec 17, 2010 | Sharp EL-1801P Calculator

Not familiar with your model but others I have serviced used an ink-impregnated roller rather than a ribbon; you may be looking for the wrong object.
They were generally rolling directly on numeral roller.

Apr 15, 2010 | Sharp EL-1801C Calculator

Here is the manual on link below on page 5 tells you how to replace.

http://dl.owneriq.net/e/ea19126b-3714-4b3d-bce5-712458b60c6d.pdf

Good luck and please rate 4 thumbs for the free answer

http://dl.owneriq.net/e/ea19126b-3714-4b3d-bce5-712458b60c6d.pdf

Good luck and please rate 4 thumbs for the free answer

Mar 12, 2010 | Sharp EL-1801C Calculator

Check the Decimal / Add Selector. It shoul be set to "A" (Add mode), to permit addition and
subtraction of numbers without entry of the decimal point.

You may also want to download the SHARP

EL-1801P Operation Manual

You may also want to download the SHARP

EL-1801P Operation Manual

Jun 22, 2009 | Sharp EL-1801P Calculator

Lift the clear plastic thing between the calculator and the ribbon.

Thanks, Logan

Thanks, Logan

Jan 16, 2009 | Sharp EL-1801C Calculator

How do I subtract on Sharp EL-180 1V calculator?

Jul 25, 2008 | Sharp EL-1801AII Calculator

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