Calculator User Manual
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 1013MATRX.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
matrixB
¹matrixA
Multiplies
matrixA
and
matrixB
; returns a square matrix of the
products
matrix
¹number
or
number
¹matrix
Returns a matrix that is the product of a real or complex
number
times each element in a real or complex
matrix
matrix
¹vector
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
M
matrix
(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
ƒ
matrixB
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.