Texas Instruments TI-89 Titanium User Manual

874 Appendix A: Functions and Instructions
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 .
6ì 2 ¸ 4
pì pà6
¸
5ø 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,pà2}ì {10,5,pà2} ¸
{12 pì 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.
15ì {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.
20ì [1,2;3,4] ¸
[
19 ë 2
ë 3 16
]
ù
(multiply)
p key
expression1 ù expression2 ⇒ expression
Returns the product of expression1 and expression2 .
2ù 3.45 ¸ 6.9
xù yù x
¸ x
2
ø y

Texas Instruments TI-89 Titanium Specifications

General

Brand	Texas Instruments
Model	TI-89 Titanium
Category	Calculator
Language	English