Texas Instruments TITANIUM TI-89 - Manual (Page 866)

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",ë2) ¸ "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;л 3,л 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])
¸
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