Texas TI-86 用户手册
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
matrixA
¹
matrixB
or
matrixB
¹
matrixA
Multiplies matrixA and matrixB; returns a square matrix of the
products
products
matrix
¹
number
or
number
¹
matrix
Returns a matrix that is the product of a real or complex number
times each element in a real or complex matrix
times each element in a real or complex matrix
matrix
¹
vector
Returns a vector that is the product of each vector element times each
matrix
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
matrix
int
matrix
Returns the greatest integer of each element of a real or complex
matrix
matrix
To multiply two matrices, the
column dimension of
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.
cosine of each matrix
element.
To make relational
comparisons,
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.