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Appendix A: Functions and Instructions 531
8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 531 of 132
.
.
(dot subt.)
¶|
keys
matrix1
.
ì
matrix2
⇒
matrix
expression
.
ì
matrix1
⇒
matrix
matrix1
.
ì
matrix2
returns a matrix that is the
difference between each pair of
corresponding elements in
matrix1
and
matrix2
.
expression
.
ì
matrix1
returns a matrix that is
the difference of
expression
and each element
in
matrix1.
[a,2;b,3].
ì
[c,4;d,5]
¸
x.
ì
[
c,4;
d
,5
]
¸
.
ù
(dot mult.)
¶p
keys
matrix1
.
ù
matrix2
⇒
matrix
expression
.
ù
matrix1
⇒
matrix
matrix1
.
ù
matrix2
returns a matrix that is the
product of each pair of corresponding
elements in
matrix1
and
matrix2
.
expression
.
ù
matrix1
returns a matrix
containing the products of
expression
and
each element in
matrix1
.
[a,2;b,3].
ù
[c,4;5,d]
¸
x.
ù
[a,b;c,d]
¸
.
/
(dot divide)
¶e
keys
matrix1
.
/ matrix2
⇒
matrix
expression
.
/
matrix1
⇒
matrix
matrix1
.
/
matrix2
returns a matrix that is the
quotient of each pair of corresponding
elements in
matrix1
and
matrix2
.
expression
.
/
matrix1
returns a matrix that is
the quotient of
expression
and each element in
matrix1.
[a,2;b,3]./[c,4;5,d]
¸
x.
/[
c,4;5,
d]
¸
.^
(dot power)
¶Z
keys
matrix1 .
^
matrix2
⇒
matrix
expression
.
^
matrix1
⇒
matrix
matrix1
.
^
matrix2
returns a matrix where
each element in
matrix2
is the exponent for
the corresponding element in
matrix1
.
expression
.
^
matrix1
returns a matrix where
each element in
matrix1
is the exponent for
expression
.
[a,2;b,3].^[c,4;5,d]
¸
x.^[c,4;5,d]
¸
!
(factorial)
TI
-
89:
¥
e
key TI
-
92 Plus:
2
W
key
expression1
!
⇒
expression
list1
!
⇒
list
matrix1
!
⇒
matrix
Returns the factorial of the argument.
For a list or matrix, returns a list or matrix of
factorials of the elements.
The
TI
-
89
computes a numeric value for only
non-negative whole-number values.
5
!
¸
120
{5,4,3}
!
¸
{120 24 6}
[1,2;3,4]
!
¸
[
1 2
6 24
]