Texas Instruments TI-89 Titanium - Page 275

Appendix A: Functions and Instructions 269
.ù
(dot mult.)
¶pkeys
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)
¶ekeys
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)
¶Zkeys
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]
¸
ë
(negate)
· key and MATH/Base menu
ë expression1 ⇒ expression
ë list1 ⇒ list
ë matrix1 ⇒ matrix
Returns the negation of the argument.
For a list or matrix, returns all the elements
negated.
If
expression1 is a binary or hexadecimal integer,
the negation gives the two’s complement.
ë 2.43 ¸ ë 2.43
ë {ë 1,0.4,1.2í 19}
¸
{1 ë.4 ë 1.2í 19}
ë aùëb
¸ aø b
In Bin base mode:
0b100101 4dec ¸ 37
ë 0b100101 ¸
0b11111111111111111111111111011011
ans(1) 4dec ¸ë37
Note: To type 4, press 2 p.
% (percent) CHAR/Punctuation menu
expression1 % ⇒ expression
list1
% ⇒ list
matrix1
% ⇒ matrix
Returns
argument
100
.
For a list or matrix, returns a list or matrix with
each element divided by 100.
13% ¥ ¸ .13
{1, 10, 100}%
¥ ¸
{.01 .1 1.}
Important: Zero, not the letter O.