Texas Instruments TITANIUM TI-89 - Manual (Page 904)

904 Appendix A: Functions and Instructions
. 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] ¸
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.
л 2.43 ¸ л 2.43
л {л 1,0.4,1.2н 19} ¸
{1 л .4 л 1.2н 19}
л aщ л b ¸ aø b
In Bin base mode:
0b100101 4 dec ¸ 37
ë 0b100101 ¸
0b11111111111111111111111111011011
ans(1) 4 dec ¸ ë 37
Note: To type 4, press 2  .
% (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.