Casio CFX-9800G-w Owners Manual - Page 86
I4Mat
UPC - 079767128685
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Specify the name of the matrix you want to multiply. El(Mat)®E I4Mat A_ IDEEMEIRITIPIM I Execute the operation and display the matrix where the result is stored IXE AYES I 2 ISJ 4 8 The display_ shows that the scalar product of Matrix A is ( 12 16 ' NIDeterminants Determinants are calculated automatically using the formulas shown below. Note that after you calculate a determinant, you can assign it to a value memory. •2'x 2 matrix tAl ( all a1, a,1 a21 / = al, axx - an an •3"x 3 matrix 11 IA I = ( a42, afi; aZ) a„ a„ a,, = all an aaa + a1, an an an an a,, a13 a2, an - au an aax - a1x an a33 •To calculate a determinant Example To calculate the determinant for the following matrix (Matrix A). (1 2 3 4 5 -1 -2 0) -136-- Perform the following operationwhile in he Matrix Mode. E(Det) E(Mat) Input the name of the matrix whose determinant you want to calculate. 1:3 Execute the operation and display the result. ret Mat A -91 IlinEgniifiliMM F1 F2 The display shows that the determinant of Matrix A = -9. *Note that you can calculate the determinant for square matrices (same number of rows and columns) only. Attempting to calculate the determinant for a matrix that is not square results in a "Dim ERROR." •Transposing a Matrix Transposing a matrix causes its rows to become columns and its columns to become rows. You can transpose any matrix in the matrix list (Matrix A through Matrix Z) or the matrix in the Matrix Answer Memory. •To transpose a matrix Example To transpose the following matrix (Matrix A). 1 2 (36 64 ) Perform the following operation while in the Matrix Mode. E(Trn) Specify the name of the matrix you want to transpose. E(Mat)arn ITrn Mat IVIEHERMIZEIWIM I E E -137-