Texas Instruments TI-86 - Manual (Page 198)

186
Chapter 13: Matrices
13MATRX.DOC TI-86, Chap 13, US English Bob Fedorisko Revised: 02/13/01 2:32 PM Printed: 02/13/01 3:03 PM Page 186 of 10 13MATRX.DOC TI-86, Chap 13, US English Bob Fedorisko Revised: 02/13/01 2:32 PM Printed: 02/13/01 3:03 PM Page 186 of 10
matrixA¹matrixB or
matrixB¹matrixA
Multiplies matrixA and matrixB; returns a square matrix of the
products
matrix¹number or
number¹matrix
Returns a matrix that is the product of a real or complex number
times each element in a real or complex matrix
matrix¹vector Returns a vector that is the product of each vector element times each
matrix
element; the matrix column dimension and vector dimension
must be equal
Mmatrix (negation) Changes the sign of each element in matrix
squareMatrix M 1 Returns the inverse of squareMatrix (not the inverse of each element)
matrix 2 Squares a square matrix
squareMatrix ^ power Raises a squareMatrix to the designated power
e^ squareMatrix Returns the square matrix exponential of a real squareMatrix
sin squareMatrix Returns the square matrix sine of a real squareMatrix
cos squareMatrix Returns the square matrix cosine of a real squareMatrix
matrixA == matrixB Returns 1 if every corresponding element comparison is true; returns
0 if any is false
matrixA ƒmatrixB Returns 1 if at least one corresponding element comparison is false
round( matrix [ , #ofDecimals ] ) Rounds each matrix element to 12 digits or to specified #of Decimals
iPart matrix Returns the integer part of each element of a real or complex matrix
fPart matrix Returns the fractional part of each element of a real or complex
matrix
int matrix Returns the greatest integer of each element of a real or complex
matrix
To multiply two matrices, the
column dimension of
matrixA must equal the row
dimension of matrixB .
To enter M 1 , press - ƒ . Do
not use 2 @ a 1.
e^ , sin, and cos do not return
the exponential, sine, or
cosine of each matrix
element.
To make relational
comparisons,
matrixA and
matrixB must have equal
dimensions.
== and ƒ are on the TEST
menu.
round , iPart, fPart, and int
are on the MATH NUM menu.