200702012-8-13Matrix Calculationsu Modifying Matrices Using Matrix CommandsYou can also use matrix commands to assign values to and recall values from an existingmatrix, to fi ll in all cells of an existing matrix with the same value, to combine two matricesinto a single matrix, and to assign the contents of a matrix column to a list file.u To assign values to and recall values from an existing matrix[OPTN]-[MAT]-[Mat]Use the following format with the Mat command to specify a cell for value assignment andrecall.Mat X [m, n]X ...................................matrix name (A through Z, or Ans)m ...................................row numbern ....................................column numberExample 1 Assign 10 to the cell at row 1, column 2 of the following matrix :Matrix A =1 23 45 6baaK2(MAT)1(Mat)av(A)!+( )b,c!-( )wJJ1('MAT)wExample 2 Multiply the value in the cell at row 2, column 2 of the abovematrix by 5K2(MAT)1(Mat)av(A)!+( )c,c!-( )*fw
