TI-83 Plus Matrices 271
abs(
abs( (absolute value, MATH NUM menu) returns a matrix containing the
absolute value of each element of matrix.
abs(matrix)
round(
round( (MATH NUM menu) returns a matrix. It rounds every element in
matrix to #decimals ( 9). If #decimals is omitted, the elements are rounded
to 10 digits.
round(matrix[,#decimals])
M1 (Inverse)
Use the L1 function (œ) to invert a matrix (^L1 is not valid). matrix must be
square. The determinant cannot equal zero.