Question about Casio FX-115ES Scientific Calculator

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Press MODE 6 to get into matrix mode. Note: do this only once. If you do it again, it will erase all your matrices. Pick the matrix, set its dimension, then the calculator will put up a screen allowing you to enter/edit the matrix elements. At any time you're in matrix mode, press SHIFT 4 to bring up the matrix menu.

All this is explained in the manual beginning on page E-57. If you've misplaced the manual, you can download a copy from

http://support.casio.com/manualfile.php?rgn=1&cid=004001004

Posted on Nov 08, 2010

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Posted on Jan 02, 2017

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SOURCE: Weather casio FX-115ES can solve 5*5 matrix

According to the manual for the Casio FX115ES, the largest matrix it solves is a 3x3.

Posted on Sep 11, 2008

Press key Mode, first select option 5:EQN (by pressing key 5), then option 2: a_nX+b_nY+c_nZ=d_n (by pressin 2).

Now input coefficients from equations in table (each column is for one variable), just type in number and press =, then use arrows to move to another cell.

Now input coefficients from equations in table (each column is for one variable), just type in number and press =, then use arrows to move to another cell.

Sep 02, 2011 | Casio FX-115ES Scientific Calculator

1. press mode
2. select the option matrix (6)
3.select matrix A,B or C
4 select (m x n)
5 input matrix
6 repeat steps1-5 if u are using more than 1 matrix. (select another matrix (A,B or C) in step 3)
7 press shift and 4 and select the required functions. (mat A x mat B or det mat A etc..)

Jan 09, 2011 | Casio FX-115ES Scientific Calculator

By default the calculator only works with real numbers. To use complex numbers, press MODE 2 to switch to complex mode.

Dec 13, 2010 | Casio FX-115ES Scientific Calculator

If you want to manipulate 6x6 matrices, you can use one of the CASIO Graphing calculators, such as theCFX-9850GPlus, or the FX-9750G plus.

Graphing calculators from other manufacturers can also handle such matrices. The FX-115ES can handle matrices with dimensions up to 3x3.

Graphing calculators from other manufacturers can also handle such matrices. The FX-115ES can handle matrices with dimensions up to 3x3.

Nov 25, 2010 | Casio FX-115ES Scientific Calculator

What do you mean by "solve a matrix"? Find the inverse? Find the determinant? Find the solution to a system of linear equations? Within limits the fx-115ES can do any of these and more.

The procedures are described in the "Matrix Calculations" section of the manual. If you still have problems, please reply to this post specifying what you want to do.

The procedures are described in the "Matrix Calculations" section of the manual. If you still have problems, please reply to this post specifying what you want to do.

Nov 18, 2010 | Casio FX-115ES Scientific Calculator

No. The fx-115ES only allows real numbers in matrix mode.

Oct 29, 2010 | Casio FX-115ES Scientific Calculator

Hello,

**I will assume you are familiar with the basic concepts of matrix algebra**.

Turn calculator [ON]

Press [MODE][6:MATRIX]. Select the matrix you want: MatA, MatB, Matc

Let us assume you select 1: MatA.

MatA (mxn) sceen: there you specify the dimensions of the matrix, the number of rows, and the number of columns. Press 5 for a 2x2 matrix.

The matrix entry screen shows, a rectangle is highlighted. Enter there the a_11 coefficient, exemple 1.

1 [ENTER]. Highlight moves to a_12 ;

1 [ENTER] highlight moves to a_21

1 [ENTER] highlight moves to a_22

2 [ENTER] Highlight stays on a_22.

Matrix is defined. The values I used are arbitrary. Enter your own.

Suppose you want to calculate the determinant of MatA

Press [SHIFT][MATRIX][7:det][SHIFT][MATRIX][3:MatA] [)] [=]

Now you want to calculate the square of matA.

Press [SHIFT][MATRIX][3:MatA] [x^2][=]

A 2x2 matrix is displayed. It is MatA[^2].

If you define MatA, MatB, MatC y

Turn calculator [ON]

Press [MODE][6:MATRIX]. Select the matrix you want: MatA, MatB, Matc

Let us assume you select 1: MatA.

MatA (mxn) sceen: there you specify the dimensions of the matrix, the number of rows, and the number of columns. Press 5 for a 2x2 matrix.

The matrix entry screen shows, a rectangle is highlighted. Enter there the a_11 coefficient, exemple 1.

1 [ENTER]. Highlight moves to a_12 ;

1 [ENTER] highlight moves to a_21

1 [ENTER] highlight moves to a_22

2 [ENTER] Highlight stays on a_22.

Matrix is defined. The values I used are arbitrary. Enter your own.

Suppose you want to calculate the determinant of MatA

Press [SHIFT][MATRIX][7:det][SHIFT][MATRIX][3:MatA] [)] [=]

Now you want to calculate the square of matA.

Press [SHIFT][MATRIX][3:MatA] [x^2][=]

A 2x2 matrix is displayed. It is MatA[^2].

If you define MatA, MatB, MatC y

Sep 24, 2009 | Casio FX-115ES Scientific Calculator

Hello,

The error may be due to the key you used to signifie inverse. It says in the manual that you should use the key x^-1 not the one used to input general powers.

Here is screen capture from the Appendix to the manual. The picture shows the sequence of keys to press to obtain the inverse of a 2x2 matrix. It is taken from page 41 of Appendix

The matrix used in the exemple is

a_11=2 a_12=1 a_21=1 a_22=2

Here is the link to download the manual and the appendix

http://support.casio.com/manualfile.php?rgn=1&cid=004001004

Hope it helps

The error may be due to the key you used to signifie inverse. It says in the manual that you should use the key x^-1 not the one used to input general powers.

Here is screen capture from the Appendix to the manual. The picture shows the sequence of keys to press to obtain the inverse of a 2x2 matrix. It is taken from page 41 of Appendix

The matrix used in the exemple is

a_11=2 a_12=1 a_21=1 a_22=2

Here is the link to download the manual and the appendix

http://support.casio.com/manualfile.php?rgn=1&cid=004001004

Hope it helps

Jul 13, 2009 | Casio FX-115ES Scientific Calculator

According to the manual for the Casio FX115ES, the largest matrix it solves is a 3x3.

Sep 06, 2008 | Casio FX-115ES Scientific Calculator

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