Texas Instruments TI-89 . (dot mult.) , . / (dot divide) , .^ (dot power) Zkeys , (negate) key and MATH/Base menu , % (percent) CHAR/Punctuation menu

904 Appendix A: Functions and Instructions
.ù(dot mult.) ¶pkeys
matrix1 . ùmatrix2 ⇒
⇒⇒
⇒ matrix
expression
. ùmatrix1 ⇒
⇒⇒
⇒ 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.
ë2.43 ¸ ë2.43
ë{ë1,0.4,1.2í19} ¸
{1 ë.4 ë1.2í19}
ëaùëb ¸ aøb
In Bin base mode:
0b100101 4dec ¸ 37
ë0b100101 ¸
0b11111111111111111111111111011011
ans(1) 4dec ¸ ë37
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.