Question about Office Equipment & Supplies

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Posted on Jan 02, 2017

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SOURCE: HELP WITH SIMPLE ADDING, SUBRACTING AND MULTIPLYING

I love that old, little calculator, the TI-1795+ (not the new one, SV).

Does anyone know where to get any more of these. I'd buy a few,

but they are probably out of production. I've had my three for years

and years and years. They still work fine.

Posted on Jan 02, 2009

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SOURCE: CASIO ms-7TV

To change the task number you must press and hold % (rate set) for 3 to 5 seconds, should appear tax XX %, now type your tax number and press % again and AC. To test type "100" press TAX + and the result should be 110, if your tax rate is 10% for example.

Posted on Aug 13, 2010

SOURCE: Need to change tax rate

1. Press [AC]

2. Hold [SET/%] key for about 2 seconds

3. Press [TAX+]

4. Input the tax rate

5. Press [SET/%]

Posted on Dec 09, 2010

SOURCE: We are trying to add, subtract, multiply, and

This
post is rather exhaustive as regards the matrix capabilities of the
calculator. So if the post recalls things you already know, please skip
them. Matrix multiplication is at the end. As to division of matrices, I do not believe that this operation exits.

Let me explain how to create matrices. (If you know how to do it, skip
to the operations on matrices, at the end.)

First you must set
Matrix calculation

[MODE][6:Matrix]. Then By entering one of the numbers [1:MatA] or
[2:Matb] or [3:MatC] you get to choose the dimensions of the matrix

(mxn]. Once finished entering the matrix you clear the screen.

The operations on matrices are available by pressing [Shift][Matrix]

[1:Dim] to change the dimension of a matrix (in fact redefining the
matrix)

[2: D A T A] enter values
in a matrix

[3:MatA] access Matrix A

[4:Matb] access Matrix B

[5:MatC] access matrix C

[6:MatAns] access the Answer Matrix (the last matrix calculated)

[7:det] Calculate the determinant of a matrix already defined

[8:Trn] The transpose of a matrix already defined

To add matrices MatA+MatB (MUST have identical dimensions same m and same n, m and n do not have to be the same)

To subtract MatA-MatB. (MUST have identical dimensions, see above)

To multiply MatAxMatB (See below for conditions on dimensions)

To raise a matrix to a power 2 [x2], cube [x3]

To obtain inverse of a SQUARE MatA already defined MatA[x^-1]. The key [x^-1] is the x to
the power -1 key. If the determinant of a matrix is zero, the matrix is singular and its inverse does not exit.

Dimensions of matrices involved in operations must match. Here is a
short summary

The multiplication of structured mathematical
entities (vectors, complex
numbers, matrices, etc.) is different from the multiplication of
unstructured (scalar) mathematical entities (regular numbers). As you
well know matrix multiplication is not commutative> This has to do
with the dimensions.

An **mXn **matrix has** m rows **and**
n columns**. To perform multiplication of an **kXl** matrix by
an **mXn** matrix you multiply each element in one row of the first
matrix by a specific element in a column of the second matrix. This
imposes a condition, namely that the number of columns of the first
matrix be equal to the number of rows of the second.

Thus, to be
able to multiply a kXl matrix by am mXn matrix, the number of columns of
the first (l) must be equal to the number of rows of the second (m).

So**
MatA(kXl) * MatB(mXn) is possible only if l=m**

MatA(kX3) *
Mat(3Xn) is possible and meaningful, but

Mat(kX3) * Mat(nX3) may not
be possible.

To get back to your calculation, make sure that the
number of columns of the first matrix is equal to the number of rows of
the second.** If this condition is not satisfied, the calculator
returns a dimension error**. The order of the matrices in the
multiplication is, shall we say, vital.

Posted on May 10, 2011

SOURCE: can not reset calculator. Keep getting + sign when press enter

If the **TI-84** does not function even though you are sure that the

batteries are fresh, you can try manually resetting it by following steps:

1. Remove all of the **AAA** batteries from the graphing handheld

2. Press and hold the **ON** key for ten seconds

3. Replace the batteries

4. Turn on the unit

When you reset your graphing handheld, the contrast sometimes

changes. If the screen is faded or blank, adjust the contrast by

pressing **2nd** and releasing **up-arrow** or **down-arrow** keys.

Posted on Feb 24, 2013

On most Casio calculators you must type: '175 x 20 % -' (and '+' is for adding a percentage)

Feb 18, 2015 | Casio MS-80S Calculator

Percent simply means "out of 100", so one half (ie 0.5) needs to be multiplied by 100 to give 50% (for example).

Your calculator may have a percentage function (usually on the equals sign but you will need to refer to the instructions to check how it works.

Your calculator may have a percentage function (usually on the equals sign but you will need to refer to the instructions to check how it works.

Nov 22, 2011 | Casio MS-80TV Scientific Calculator

You have a button marked [a b/c].

To type in a mixed fraction, 2 and 5/ 17

2 [a b/c] 5 [a b/c]17 [=].

To enter an improper fraction use the division sign or press the [a b/c] key after the numerator.

To type in a mixed fraction, 2 and 5/ 17

2 [a b/c] 5 [a b/c]17 [=].

To enter an improper fraction use the division sign or press the [a b/c] key after the numerator.

Jun 28, 2011 | Casio FX300S-TP Calculator

Hi there,

Press AC first, then hold down the RATE SET % button for 2 seconds, then input the rate and press RATE SET % button again

And you should be away :-)

Press AC first, then hold down the RATE SET % button for 2 seconds, then input the rate and press RATE SET % button again

And you should be away :-)

Aug 12, 2009 | Casio Office Equipment & Supplies

I have a Casino MS-80S and yea, the percentage works different. As example to take 100 and subtract 10%, this is what I do: 100 X 10% - and then I get the answer 90 after I press the minus key. To add the percentage instead, 100 X 10% + will give me an answer of 110, after I press the plus key.

Apr 04, 2009 | Casio HR8TM Calculator

From CASIO FAQS:

**Why do I get the wrong answer when doing a percent calculation?**

Make sure that you are following the correct procedure.

Adding 10%: 200 [×] 10 [%] [+]

Subtract 10%: 200 [×] 10 [%] [-]

Make sure that you are following the correct procedure.

Adding 10%: 200 [×] 10 [%] [+]

Subtract 10%: 200 [×] 10 [%] [-]

Mar 26, 2009 | Casio MS-80TE Calculator

Hello,

[OPTN][LIST] scroll right till you find %. Press the function first then the number. It gives you the percent.

Hope it helps.

[OPTN][LIST] scroll right till you find %. Press the function first then the number. It gives you the percent.

Hope it helps.

Aug 29, 2008 | Casio FX-9860G Graphic Calculator

To change the task number you must press and hold % (rate set) for 3 to 5 seconds, should appear tax XX %, now type your tax number and press % again and AC. To test type "100" press TAX + and the result should be 110, if your tax rate is 10% for example.

Jul 21, 2008 | Office Equipment & Supplies

Found this on the casio site worked fine on my ms-120TE

1. Press [AC]

2. Hold [SET/%] key for about 2 seconds until set and a 0 is displayed

3. Press [TAX+]

4. Input the tax rate

5. Press [SET/%]

this is the link:- http://www.casio.com/support/content/AF64A1AC-193D-4650-A9A9-98BB6FE26CFE

1. Press [AC]

2. Hold [SET/%] key for about 2 seconds until set and a 0 is displayed

3. Press [TAX+]

4. Input the tax rate

5. Press [SET/%]

this is the link:- http://www.casio.com/support/content/AF64A1AC-193D-4650-A9A9-98BB6FE26CFE

Dec 05, 2007 | Casio fx-300ES Calculator

you hold your set % button down for three seconds until set shows again, then hit tax rate button it shows your tax rate, change your tax rate then hit set your tax rate should be set.

cliff notes:

hold set% button

hit tax+ button

change the desired %

hit set done

Jun 11, 2007 | Casio MS-80TV Scientific Calculator

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