Casio FX-CG10 Software User Guide - Page 87
Matrix Calculations, Inputting and Editing Matrices
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8. Matrix Calculations From the Main Menu, enter the Run-Matrix mode, and press 3('MAT) to perform Matrix calculations. 26 matrix memories (Mat A through Mat Z) plus a Matrix Answer Memory (MatAns), make it possible to perform the following matrix operations. • Addition, subtraction, multiplication, division • Scalar multiplication calculations • Determinant calculations • Matrix transposition • Matrix inversion • Matrix squaring • Raising a matrix to a specific power • Absolute value, integer part extraction, fractional part extraction, maximum integer calculations • Inputting complex numbers in matrix elements and using complex number related functions • Matrix modification using matrix commands The maximum number of rows that can be specified for a matrix is 999, and the maximum number of columns is 999. Important! • You can input either an upper-case X (a+(X)) or lower-case x (v) for matrix memory "Mat X". Both "Mat X" and "Mat x" refer to the same memory area. About Matrix Answer Memory (MatAns) The calculator automatically stores matrix calculation results in Matrix Answer Memory. Note the following points about Matrix Answer Memory. • Whenever you perform a matrix calculation, the current Matrix Answer Memory contents are replaced by the new result. The previous contents are deleted and cannot be recovered. • Inputting values into a matrix does not affect Matrix Answer Memory contents. k Inputting and Editing Matrices Pressing 3('MAT) displays the Matrix Editor screen. Use the Matrix Editor to input and edit matrices. m × n ... m (row) × n (column) matrix None... no matrix preset • {DELETE}/{DEL-ALL} ... deletes {a specific matrix}/{all matrices} • {DIM} ... {specifies the matrix dimensions (number of cells)} • {CSV} ... {stores a matrix as a CSV file and imports the contents of CSV file into one of the matrix memories (Mat A through Mat Z, and MatAns) (page 2-47)} 2-41