Question about Canon P23-DH Calculator

How can I get rid of the "E" after trying to do a calculation of 3 or more line items?

Re: can't add more than 3 or 5 lines without the E...

E = Error. Hit Clear, or shut the unit off and then back on.

IF after turning the machine off and back on, and you still have an "E" error , then check to see if there is anything jammed in the printer.

Posted on Feb 03, 2008

Where to start. Most things we do in math are in base 10, probably because we have 10 fingers. Instead of base 10, binary is base 2. In computers, binary rules because a bit can be set to ON or OFF, 1 being ON, and 0 being OFF.

So the next thing is counting. 0 1 10 11 100 101 110 111 1000 1001

Decimal equivalent 0 1 2 3 4 5 6 7 8 9

How to convert from binary to decimal? Line up the columns and multiply down. For example, 1101. The columns, starting from the right are 2^0, 2^1, 2^2, 2^3, reading ^ as exponent.

See if I can line these up. 1 1 0 1

2^3 2^2 2^1 2^0

8 4 2 1

multiplying down 8 4 0 1

Next step is to add them up. 8+4+1 = 13!

Going the other way, we have to divide by the largest 2^x number, so what is left over and continue dividing until nothing is left.

For example, 56. 2^5 (32) is the largest 2^x number that goes into 56, so we put a 1 in this column. Our remainder is 24. 2^4 (16) goes into this once, so we put a 1 in this column. Our remainder is 8. 2^3(8) goes into this once, so we put a 1 in this column. Now the remainder is 0 so we put a 0 in the 2^2 (4) column, 2^1(2) column, and 2^0 (1) column.

We end up with 111000.

Let me know if you have any questions.

Good luck.

Paul

So the next thing is counting. 0 1 10 11 100 101 110 111 1000 1001

Decimal equivalent 0 1 2 3 4 5 6 7 8 9

How to convert from binary to decimal? Line up the columns and multiply down. For example, 1101. The columns, starting from the right are 2^0, 2^1, 2^2, 2^3, reading ^ as exponent.

See if I can line these up. 1 1 0 1

2^3 2^2 2^1 2^0

8 4 2 1

multiplying down 8 4 0 1

Next step is to add them up. 8+4+1 = 13!

Going the other way, we have to divide by the largest 2^x number, so what is left over and continue dividing until nothing is left.

For example, 56. 2^5 (32) is the largest 2^x number that goes into 56, so we put a 1 in this column. Our remainder is 24. 2^4 (16) goes into this once, so we put a 1 in this column. Our remainder is 8. 2^3(8) goes into this once, so we put a 1 in this column. Now the remainder is 0 so we put a 0 in the 2^2 (4) column, 2^1(2) column, and 2^0 (1) column.

We end up with 111000.

Let me know if you have any questions.

Good luck.

Paul

Oct 26, 2015 | Calculators

A-2+3=-2

Rule when solving equations is to do to one side what you do to the other.

We want A to be by itself.

To get rid of -2 on the left side, we must add 2 to both sides.

A-2+3+2 =-2+2

A+3 = 0

To get rid of the 3 on the left, we must subtract 3 from both sides.

A+3-3 = 0 - 3

A = -3

To check if we did it correctly, put A = -3 in the initial equation and see if the left side is equal to the right side.

Good luck.

Paul

Rule when solving equations is to do to one side what you do to the other.

We want A to be by itself.

To get rid of -2 on the left side, we must add 2 to both sides.

A-2+3+2 =-2+2

A+3 = 0

To get rid of the 3 on the left, we must subtract 3 from both sides.

A+3-3 = 0 - 3

A = -3

To check if we did it correctly, put A = -3 in the initial equation and see if the left side is equal to the right side.

Good luck.

Paul

Oct 16, 2014 | Calculators

Are you entering any number before pressing the minus, add, multiply, or divide key? Those operations require two numbers; if you don't supply the first one then the calculator will supply the previous answer, which was zero.

For example, to add 2 and 3, press 2 + 3 = and you'll see 5. Now to add 4 to that, press + and the calculator will automatically supply the 5. Press 4 = and you'll see 9.

For example, to add 2 and 3, press 2 + 3 = and you'll see 5. Now to add 4 to that, press + and the calculator will automatically supply the 5. Press 4 = and you'll see 9.

Oct 08, 2013 | Sharp el-531x scientific calculator

The following solution shows how to find the value of x:

Start with the general equation given:

y = -(3/5)x - 8

Substitute the known value of y:

-11 = -(3/5)x - 8

Add 8 to both sides:

-11 + 8 = -(3/5)x - 8 + 8

-3 = -(3/5)x

Now multiply both sides by 5 to get rid of the denominator:

-3 * 5 = -(3/5)x * 5

-15 = -3x

Now divide by -3 to get x:

-15/3 = -3x/3

x = 5

The answer is x = 5.

Start with the general equation given:

y = -(3/5)x - 8

Substitute the known value of y:

-11 = -(3/5)x - 8

Add 8 to both sides:

-11 + 8 = -(3/5)x - 8 + 8

-3 = -(3/5)x

Now multiply both sides by 5 to get rid of the denominator:

-3 * 5 = -(3/5)x * 5

-15 = -3x

Now divide by -3 to get x:

-15/3 = -3x/3

x = 5

The answer is x = 5.

Apr 27, 2011 | Texas Instruments TI-84 Plus Calculator

Hold (C.CE) then whilst holding it press (M+) for approximately a second and it will move one place along in the three settings (F, 2 and 0) F shows full decimals, 2 shows 2 decimal places and 0 as yours is set to now round to the nearest whole number. I have just been sat at my desk trying to work this out as my calculator was too set to '0'. Took me reading the 'DEC DET' text with lines pointing at 'M+' and 'C.CE' to finally crack it!

Hope this helps.

Hope this helps.

Apr 04, 2011 | Sharp ELM332BBL Calculator

( 3 + 4 ) ^ 3 / ( 1 7 - 2 0 0 sqrt / 2 ) = or

( 3 + 4 ) ^ 3 / ( 1 7 - 2 0 0 sqrt ) / 2 = depending on what you meant.

( 3 + 4 ) ^ 3 / ( 1 7 - 2 0 0 sqrt ) / 2 = depending on what you meant.

Oct 31, 2010 | Texas Instruments TI-30XA Calculator

MU stands for mark up.
<!-- from fixya rte -->

May 01, 2010 | Sharp EL-1197P Calculator

Do not panic!. Press [MODE]. On first line of MODE set up screen use arrow keys to highlight NORMAL and press [ENTER].

Use down arrow key to go to the line starting with FLOAT, and highlight the number of digits you want your results to display (from 0 to 9). Keep in mind that with 0, all your results will be rounded to the nearest integer. With 9, you have a large stream of digits (not necessarily a more accurate result).

However, if your results are too small or too large, the scientific display format ( with E )will be used regardless of the MODE setup.

Use down arrow key to go to the line starting with FLOAT, and highlight the number of digits you want your results to display (from 0 to 9). Keep in mind that with 0, all your results will be rounded to the nearest integer. With 9, you have a large stream of digits (not necessarily a more accurate result).

However, if your results are too small or too large, the scientific display format ( with E )will be used regardless of the MODE setup.

Mar 13, 2010 | Texas Instruments TI-84 Plus Calculator

Hi,

**You can use algebra to solve it.**

Use the fact that 4 =2^2 and 8=2^3 and substitute in the equation

(2^3)^x =2^(3*x)

Then** 2^(3*x)=2^2**

By equating the exponents

3x=2 and**x=2/3**

**Using the solve( function**

With the calculator physical keys between square brackets, and the SHIFTed or ALPHA keys between parentheses, type in the following

8 [^ ] [ALPHA] [ ) ] (X) [ALPHA][CALC] ( =) 4 [SHIFT][CALC] (SOLVE)

Once the foregoing command entered press [=]

Display shows**Solve for X** on top line and probably **0.000** on bottom line.

Press [.] 5 to give 0.5 as a guess for the value of x

After a moment the calculator returns with the solution.

The display shows three lines

1st Line: 8[^] X =4

2nd Line: X= 0.66666666

3rd Line : L-R =0.

Your solution is 0.6666666. In fact the exact solution is 2/3.

Hope it helps.

Thank you for using FixYa and for rating this solution.

Use the fact that 4 =2^2 and 8=2^3 and substitute in the equation

(2^3)^x =2^(3*x)

Then

By equating the exponents

3x=2 and

With the calculator physical keys between square brackets, and the SHIFTed or ALPHA keys between parentheses, type in the following

8 [^ ] [ALPHA] [ ) ] (X) [ALPHA][CALC] ( =) 4 [SHIFT][CALC] (SOLVE)

Once the foregoing command entered press [=]

Display shows

Press [.] 5 to give 0.5 as a guess for the value of x

After a moment the calculator returns with the solution.

The display shows three lines

1st Line: 8[^] X =4

2nd Line: X= 0.66666666

3rd Line : L-R =0.

Your solution is 0.6666666. In fact the exact solution is 2/3.

Hope it helps.

Thank you for using FixYa and for rating this solution.

Dec 03, 2009 | Casio FX-115ES Scientific Calculator

I found it by myself, I can help you.

1. Press (AC)

2. Hold (Rate) for about 2-3 second

3. Press (Set / TAX+)

4. Input the tax rate

5. Press (Set / TAX+)

6. Hold (Rate) for about 2-3 second again

7. Press (Set / TAX+) again

And Then you can test the rate .

From Thailand

1. Press (AC)

2. Hold (Rate) for about 2-3 second

3. Press (Set / TAX+)

4. Input the tax rate

5. Press (Set / TAX+)

6. Hold (Rate) for about 2-3 second again

7. Press (Set / TAX+) again

And Then you can test the rate .

From Thailand

Mar 12, 2009 | Casio Calculators

Jun 25, 2014 | Canon P23-DH Calculator

Jun 13, 2014 | Canon P23-DH Calculator

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IT HAS AN E ON THE SCREEN AND IT WONT FEED OR PRINT. HELP!

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