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How do i access the use of my calculator already on the computer to show the info on the screen

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Click on start
click on run
in the new window - type calc
press enter

Posted on Jul 24, 2009

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How do i find inverses numbers on my calculator


To calculate the inverse of a number one does as follows.
Non-scientific calculator: enter 1/ number the =
Scientific calculator: use the reciprocal key marked [x^-1] or [1/x]
The key, if it exists may be accessed directly (by pressing it), or after pressing the [SHIFT], [2nd ] or [2ndF] key. For the reciprocal key the number must already appear in the display screen.

Sep 27, 2014 | Office Equipment & Supplies

1 Answer

How to compute a matrix


  1. First you must set Matrix calculation: Press [MODE][6:Matrix].
  2. 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].
  3. Once finished entering the matrix you clear the screen.
  4. The operations on A SINGLE matrix are available by pressing [Shift][Matrix].
  5. The choices are
  • [1:Dim] to change the dimension of a matrix (in fact redefining the matrix)
  • [2:Data] 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

Once you have created a square matrix, for example matA.
You press
[Shift][Matrix] [7:det] [SHIFT][MATRIX][3:MatA], close the parenthesis and press [ENTER].

If you have defined two similar matrices (same number of row and same number of columns) you can ADD them or subtract them. The operation keys are Plus and Minus as for any number.
To multiply you use the multiplication sign. The matrices must be compatible (mxn) multiplied by (nxk).

Aug 10, 2011 | Casio FX-115ES Scientific Calculator

1 Answer

How do get the determinant from a 4 x 4 matrix


To create the matrix (in case you do not know.)

  1. Press [2nd][X^-1] to access the (MATRIX) menus.
  2. Use the right arrow key to move to the tab [EDIT]
  3. Under tab EDIT, press 1 to name the matrix as [A]
  4. A matrix template opens (default dimensions are 1x1)
  5. Change the dimensions to 4x4: Press digit 4 key and ENTER. Cursor move to 2nd dimension. Type in 4 and press [ENTER] to validate.
  6. The matrix template changes: screen shows a matrix, filled with 0.
  7. Enter the value of each coefficient and press [ENTER]. The cursor move to next coefficient.
  8. After you validate all values, press [2nd][MODE] to (QUIT) the matrix editor.
To calculate the determinant of a matrix that is already defined.
  1. In main calculator screen press [2nd][X^-1] to open the (MATRIX) functions.
  2. Use the right arrow once to highlight the [MATH] menu.
  3. Select [1:det(] and press [ENTER]
  4. The command det( echoes on main screen.
  5. Press [2nd][X^-1] to opent the (Matrix) menus again.
  6. Select the number in list that corresponds to your matrix (presumably 1:[A]) and press [ENTER]
  7. The command line shows det( [A]
  8. Complete the command by closing the parenthesis and pressing [ENTER]
  9. Wait for the result to be displayed.

Nov 01, 2010 | Texas Instruments TI-83 Plus Calculator

1 Answer

How to use the regular calculator to solve a matrix question?


  1. First you must set Matrix calculation: Press [MODE][6:Matrix].
  2. 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].
  3. Once finished entering the matrix you clear the screen.
  4. The operations on A SINGLE matrix are available by pressing [Shift][Matrix].
  5. The choices are
  • [1:Dim] to change the dimension of a matrix (in fact redefining the matrix)
  • [2:Data] 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

Once you have created a square matrix, for example matA.
You press
[Shift][Matrix] [7:det] [SHIFT][MATRIX][3:MatA], close the parenthesis and press [ENTER].

If you have defined two similar matrices (same number of row and same number of columns) you can ADD them or subtract them. The operation keys are Plus and Minus as for any number.
To multiply you use the multiplication sign. The matrices must be compatible (mxn) multiplied by (nxk).

Sep 27, 2010 | Casio FX-115ES Scientific Calculator

1 Answer

How to find the determinant


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 A SINGLE matrix are available by pressing [Shift][Matrix]. The choices are
[1:Dim] to change the dimension of a matrix (in fact redefining the matrix)
[2:Data] 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

Once you have created a square matrix, for example matA.
You press
[Shift][Matrix] [7:det] [SHIFT][MATRIX][3:MatA], close the parenthesis and press [ENTER].

Aug 17, 2010 | Casio FX-115ES Scientific Calculator

1 Answer

How do I find degrees minutes and seconds on my ti 84 plus?


On this family of calculators, you do as follows
  1. Enter the first number (degrees), ex:15
  2. Press [2nd][APPS] (ANGLE) to access the Angle functions
  3. Select [1: degree symbol] [ENTER]
  4. Main screen shows 15 deg
  5. Enter the minutes, ex 25
  6. Press [2nd] [APPS](ANGLE) to access Angle functions
  7. Select [2:' apostrophe] [ENTER]
  8. Screen echoes 15 deg 25'
  9. Enter the seconds number, ex 32
  10. Press [ALPHA][+] (") to access the double quotation mark.
  11. Screen echoes 15 deg 25' 32"
  12. Press [ENTER]
  13. Calculator converts this in decimal degrees 15.42555556

To convert this back to DMS, press [ANGLE][|=>DMS][ENTER] and the calculator displays the original value 15 deg 25' 32"

Jan 11, 2010 | Texas Instruments TI-84 Plus Calculator

1 Answer

If a textbook problem is given in DMS notation, how do I enter the DMS notation into the TI84 to get decimal degrees?


On this family of calculators, you do as follows
Enter the first number (degrees), ex:15
Press [2nd][APPS] (ANGLE) to access the Angle functions
Select [1: degree symbol] [ENTER]
Main screen shows 15 deg
Enter the minutes, ex 25
Press [2nd] [APPS](ANGLE) to access Angle functions
Select [2:' apostrophe] [ENTER]
Screen echoes 15 deg 25'
Enter the seconds number, ex 32
Press [2nd][+] (") to access the double quotation mark
Screen echoes 15 deg 25' 32"
Press [ENTER]
Calculator converts this in decimal degrees 15.42555556

To convert this back to DMS, press [ANGLE][|=>DMS][ENTER] and the calculator displays the original value 15 deg 25' 32"

Jan 06, 2010 | Texas Instruments TI-85 Calculator

2 Answers

How do i do a matrix problem in my casio fx 115 es, i don't get to work manual instruccions with my book problems


Hello
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:Data] 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
To subtract MatA-MatB
To multiply MatAxMatB
To raise a matrixe to a power 2 [x2], cube [x3]
To obtain inverse of MatA already defined MatA[x-1] [x-1] is the x to the power -1 key
Dimensions of matrices involved in operations must match (see you textbook for the rules)

Read the appendix to your user manual, there are several exemples.
Hope helps

Oct 11, 2009 | Casio FX-115ES Scientific Calculator

1 Answer

LCD screen showing black blank screen


Hello,
First you should try to reduce contrast
1.Press [2nd] yellow key and release it
2.Press [DownArrow] key then release it
3.Keep doing the 2 steps in sequence untill the screen is lighter.

If that does not solve your problem
Use the link below to install TIConnect software
http://education.ti.com/educationportal/sites/US/productDetail/us_ti_connect.html You can also download the latest OS there.

Install TI connect on your computer and run it to open the main Window. Then connect you calculator to a USB port and, in the TIConnect main window Click the TIDeviceInfo icon. Software will try to retrieve the info. If it does your calculator is fine.

If it tells you Device Not found , Click communication settings in same pop up window where it said Not found, and Select Device, Select Cable, Select Port and Click OK..

If you are lucky and it works, you should reinstall the OS, which can be downloaded from education.ti.com. You drag and drop the OS on the TIconnect main window. Calculator must of couse be connected to computer.

If you have problem with TIconnect, use the calc-to-calc cable to transfer the OS of a working calculator. Yous should be on Receive mode [2nd][Link] --->>Receive. (When both calculators are ready hit enter.) The other calculator, you guessed exactly right, must be on Send [2nd][Link][SEND][G:SendOS]. (When both calculators hit [ENTER])

If all that does not work, then it may be time to head for a place of worship to pray for its resurection, or look for a repair shop.
Hope it helps

Sep 14, 2009 | Texas Instruments TI-83 Plus Calculator

1 Answer

How to do matrix multiplication on Casio 115ES?


Hello
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:Data] 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
To subtract MatA-MatB
To multiply MatAxMatB
To raise a matrixe to a power 2 [x2], cube [x3]
To obtain inverse of MatA already defined MatA[x-1] [x-1] is the x to the power -1 key
Dimensions of matrices involved in operations must match (see you textbook for the rules)

Read the appendix to your user manual, there are several exemples.
Hope helps

Sep 10, 2009 | Casio FX-115ES Scientific Calculator

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