Casio fx-9750G Matrix Calculations Manual do Utilizador

Matrix Calculations26 matrix memories (Mat A through Mat Z) plus a Matrix AnswerMemory (MatAns), make it possible to perform the following matrixopera

1002(INS)uuuuuTo add a column Example To add a new column to the right of column 2 of the followingmatrix :12Matrix A =34563(COL)e3(ADD)1234566 - 2 M

1016-3 Modifying Matrices Using Matrix CommandsIn addition to using the MATRIX list to create and modify a matrix, you can also usematrix commands to

102 Example 1 To input the following data as Matrix A :135246K2(MAT)![![b,d,f!]![c,e,g!]!]a1(Mat)aAw• An error (Mem ERROR) occurs if memory becomes fu

103wThe display shows that Matrix A consists of two rows and three columns.kkkkk Modifying Matrices Using Matrix CommandsYou can also use matrix comma

104uuuuuTo fill a matrix with identical values and to combine two matricesinto a single matrixUse the matrix operation menu’s Fill command (3) to fill

105 Example To assign the contents of column 2 of the following matrix to listfile 1 :12Matrix A = 3456K2(MAT)2(M→L)1(Mat)aA,c)aColumn numberK1(LIST)

1066-4 Matrix CalculationsUse the matrix command menu to perform matrix calculation operations.uuuuuTo display the matrix commands1. From the Main Men

107 Example 1 To add the following two matrices (Matrix A + Matrix B) :A =11B =2321 211(Mat)aA+1(Mat)aBwThis display indicates the following result.A

108 Example 3 To multiply Matrix A (from Example 1) by a 2 × 2 identity matrix1(Mat)aA*6(g)1(Iden)cNumber of rows and columns.wThis display indicates

109kkkkk DeterminantThe following is the format for obtaining a determinant.MatrixMat A3 (Det) wMat ZMatAns Example Obtain the determinant for the fo

922 (row) × 2 (column) matrix123456Not dimension preset6-1 Before Performing Matrix CalculationsIn the Main Menu, select the MAT icon and press w to e

110kkkkk Matrix TranspositionA matrix is transposed when its rows become columns and its columns becomerows. The following is the format for matrix tr

111 Example To invert the following matrix :Matrix A =12341(Mat)aA!XwThis operation produces the following result.A–1 =–2 11.5 –0.5• Only square matr

112 Example To square the following matrix :Matrix A =12341(Mat)aAxwThis operation produces the following result.A2=71015 22kkkkk Raising a Matrix to

113kkkkk Determining the Absolute Value, Integer Part, FractionPart, and Maximum Integer of a MatrixThe following is the format for using a matrix in

93• All of the cells of a new matrix contain the value 0.• If “Mem ERROR” remains next to the matrix area name after you input the dimen-sions, it mea

943. Press 1 (YES) to delete the matrix or 6 (NO) to abort the operation withoutdeleting anything.• The indicator “None” replaces the dimensions of th

956-2 Matrix Cell OperationsYou can perform any of the following operations involving the cells of a matrix on thedisplay.• Row swapping, scalar produ

961(R•OP)1(Swap)Input the number of the rows you want to swap.cwdwuuuuuTo calculate the scalar product of a row Example To calculate the scalar produ

97uuuuuTo add two rows together Example To add row 2 to row 3 of the following matrix :12Matrix A =34561(R•OP)4(Rw+)Specify number of row to be added

98uuuuuTo insert a row Example To insert a new row between rows one and two of the followingmatrix :12Matrix A =34562(ROW)c2(INS)uuuuuTo add a row E

99kkkkk Column OperationsThe following menu appears whenever you press 3 (COL) while a recalled matrixis on the display.3 (COL)1 (DEL) ... Delete