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TI-83 Plus Matrices 269
Using Math Functions with Matrices
Using Math Functions with Matrices
You can use many of the math functions on the TI-83 Plus keyboard, the
MATH
menu, the
MATH NUM
menu, and the
MATH TEST
menu with matrices.
However, the dimensions must be appropriate. Each of the functions
below creates a new matrix; the original matrix remains the same.
+ (Add), – (Subtract),
ä
(Multiply)
To add (
Ã
) or subtract (
¹
) matrices, the dimensions must be the same.
The answer is a matrix in which the elements are the sum or difference
of the individual corresponding elements.
matrixA
+
matrixB
matrixA
N
matrixB
To multiply (
¯
) two matrices together, the column dimension of
matrixA
must match the row dimension of
matrixB
.