Casio CFX-9800G-w Owners Manual - Page 87
Casio CFX-9800G-w - Color Graphing Calculator Manual
UPC - 079767128685
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Execute the operation and display the transposed matrix. sxr Ras 1 ;[..121 2. ?3i 2 5 5) The display shows that transposing Matrix A produces (/ 12 3 . 6 . •Inverting a Matrix Matrices are inverted automatically according to the following rules, where A is a matrix and A-' is its inverse. •A matrix being inverted must satisfy the following conditions ( 1. 0 0 1.) •The, following shows the formula use to invert Matrix A, shown below, into inverse matrix A-'. A (a c- d A- ' _ ad - be d -b 1 -c a In the above: ad - be * 0 •To invert a matrix Example To invert the following matrix (Matrix A). ( 13 24 Perform the following operation while in the Matrix Mode. Specify the name of the matrix you want to invert. g(Mat)CI0 Specify matrix inversion. EM r at A-I_ IgnEniiiiIIMEFFig I Po -138- Execute the operation and -display the inverted matrix. Ras! aL 1.5 -0.51 The display shows that inverting Matrix A produces -2 1 *Note that a matrix cannot be inverted if the determinant is zero. Attempting to invert such a matrix results in an "Ma ERROR." ' - *Note that you can only=invert square matrices, which have the same number of rows and columns. Attempting to invert a matrix that is not square results in a "Dim ERROR." •Sguaring a Matrix Use the operations described below to square a matrix. • To square a matrix Example To square the following matrix (Matrix A). Perform the following operation while in the Matrix Mode. Specify the name of the matrix you want to square. El(Mat)I=0 Specify squaring. 0 rat A 2 _ IIIMICHIMITET Execute the operation and display the squaring matrix. 2 id' 2[ 15 22i The display shows that squaring Matrix A produces ( 176 10\ 22 -139-