Texas Instruments TI-89 Voyage 200, Руководство пользователя

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866 Appendix A: Functions and Instructions
rotate(
string1
[ ,
#ofRotations
] )
⇒ ⇒ ⇒ ⇒
string
Returns a copy of
string1
rotated right or left by
#of Rotations
characters. Does not alter
string1
.
If
#of Rotations
is positive, the rotation is to the
left. If
#of Rotations
is negative, the rotation is to
the right. The default is ë 1 (rotate right one
character).
rotate("abcd")
¸
"dabc"
rotate("abcd",
ë
2)
¸
"cdab"
rotate("abcd",1)
¸
"bcda"
round()
MATH/Number menu
round(
expression1
[ ,
digits
] )
⇒ ⇒ ⇒ ⇒
expression
Returns the argument rounded to the specified
number of digits after the decimal point.
digits must be an integer in the range 0–12. If
digits
is not included, returns the argument
rounded to 12 significant digits.
Note: Display digits mode may affect how this is
displayed.
round(1.234567,3)
¸
1.235
round(
list1
[ ,
digits
] )
⇒
⇒ ⇒
⇒
list
Returns a list of the elements rounded to the
specified number of digits.
round({
p
,
‡
(2),ln(2)},4)
¸
{3.1416 1.4142 .6931}
round(
matrix1
[ ,
digits
] )
⇒
⇒ ⇒
⇒
matrix
Returns a matrix of the elements rounded to the
specified number of digits.
round([ln(5),ln(3);
p
,
e
^(1)],1)
¸
[
1.6 1.1
3.1 2.7
]
rowAdd()
MATH/Matrix/Row ops menu
rowAdd(
matrix1
,
rIndex1
,
rIndex2
)
⇒
⇒ ⇒
⇒
matrix
Returns a copy of matrix1 with row rIndex2
replaced by the sum of rows rIndex1 and rIndex2 .
rowAdd([3,4;
ë
3,
ë
2],1,2)
¸
[ ]
3 4
0 2
rowAdd([a,b;c,d],1,2)
¸
[
a
a+c
b
b+d]
rowDim()
MATH/Matrix/Dimensions menu
rowDim(
matrix
)
⇒ ⇒ ⇒ ⇒
expression
Returns the number of rows in
matrix
.
Note: See also
colDim()
.
[1,2;3,4;5,6]
!
M1
¸






1 2
3 4
5 6
rowdim(M1)
¸
3
rowNorm()
MATH/Matrix/Norms menu
rowNorm(
matrix
)
⇒
⇒ ⇒
⇒
expression
Returns the maximum of the sums of the absolute
values of the elements in the rows in
matrix .
Note: All matrix elements must simplify to
numbers. See also
colNorm()
.
rowNorm([-5,6,-7;3,4,9;9,-9,-7])
¸
25