Texas Instruments TI-89 Voyage 200, Руководство пользователя

Страница: 901 / 1008

Appendix A: Functions and Instructions 901
list1 + list2
⇒
list
matrix1 + matrix2
⇒
matrix
Returns a list (or matrix) containing the sums of
corresponding elements in
list1 and list2 (or
matrix1 and matrix2 ).
Dimensions of the arguments must be equal.
{22,
p
,
p
/2}
!
L1
¸
{22
p p
/2}
{10,5,
p
/2}
!
L2
¸
{10 5
p
/2}
L1+L2
¸
{32
p
+5
p
}
ans(1)+{
p
,
ë
5,
ë p
}
¸
{
p
+32
p
0}
[a,b;c,d]+[1,0;0,1]
¸
[ ]
a+1 b
c d+1
expression
+
list1
⇒
list
list1 + expression
⇒
list
Returns a list containing the sums of
expression
and each element in
list1
.
15+{10,15,20}
¸
{25 30 35}
{10,15,20}+15
¸
{25 30 35}
expression + matrix1
⇒
matrix
matrix1 + expression
⇒
matrix
Returns a matrix with
expression
added to each
element on the diagonal of
matrix1
.
matrix1
must
be square.
Note: Use
.+
(dot plus) to add an expression to
each element.
20+[1,2;3,4]
¸
[
21 2
3 24
]
ì
(subtract)
|
key
expression1 - expression2
⇒
⇒ ⇒
⇒
expression
Returns
expression1
minus
expression2.
6
ì
2
¸
4
p ì pà
6
¸
5
ø p
6
list1
----
list2
⇒
list
matrix1
----
matrix2
⇒
matrix
Subtracts each element in
list2
(or
matrix2
) from
the corresponding element in
list1
(or
matrix1
),
and returns the results.
Dimensions of the arguments must be equal.
{22,
p
,
pà
2}
ì
{10,5,
pà
2}
¸
{12
p ì
5 0}
[3,4]
ì
[1,2]
¸
[2 2]
expression
----
list1
⇒
list
list1
----
expression
⇒
list
Subtracts each
list1
element from
expression
or
subtracts
expression
from each
list1
element, and
returns a list of the results.
15
ì
{10,15,20}
¸
{5 0 -5}
{10,15,20}
ì
15
¸
{-5 0 5}
expression
----
matrix1
⇒
matrix
matrix1
----
expression
⇒
matrix
expression
ì
matrix1
returns a matrix of
expression
times the identity matrix minus
matrix1
.
matrix1
must be square.
matrix1
ì
expression
returns a matrix of
expression
times the identity matrix subtracted from
matrix1
.
matrix1
must be square.
Note: Use
.
.... (dot minus) to subtract an
expression from each element.
20
ì
[1,2;3,4]
¸
[
19
ë
2
ë
3 16
]