Texas Instruments TI-89 Voyage 200, Руководство пользователя, Страница: 875 / 1008

Appendix A: Functions and Instructions 875
0b00000000000001111010110000110101
produces:
0b00000000000000111101011000011010
The result is displayed according to the
Base
mode. Leading zeros are not shown.
shift(
list1 [
,
#ofShifts ]
)
⇒
⇒ ⇒
⇒
list
Returns a copy of
list1
shifted right or left by
#ofShifts
elements. Does not alter
list1
.
If
#ofShifts
is positive, the shift is to the left. If
#ofShifts
is negative, the shift is to the right. The
default is
ë
1 (shift right one element).
Elements introduced at the beginning or end of
list by the shift are set to the symbol “undef”.
In Dec base mode:
shift({1,2,3,4})
¸
{undef 1 2 3}
shift({1,2,3,4},
ë
2)
¸
{undef undef 1 2}
shift({1,2,3,4},1)
¸
{2 3 4 undef}
shift(
string1 [
,
#ofShifts ]
)
⇒ ⇒ ⇒ ⇒
string
Returns a copy of
string1
shifted right or left by
#ofShifts
characters. Does not alter
string1
.
If
#ofShifts
is positive, the shift is to the left. If
#ofShifts
is negative, the shift is to the right. The
default is
ë
1 (shift right one character).
Characters introduced at the beginning or end of
string
by the shift are set to a space.
shift("abcd")
¸
" abc"
shift("abcd",
ë
2)
¸
" ab"
shift("abcd",1)
¸
"bcd "
ShowStat
CATALOG
ShowStat
Displays a dialog box containing the last
computed statistics results if they are still valid.
Statistics results are cleared automatically if the
data to compute them has changed.
Use this instruction after a statistics calculation,
such as
LinReg
.
{1,2,3,4,5}
!
L1
¸
{1 2 3 4 5}
{0,2,6,10,25}
!
L2
¸
{0 2 6 10 25}
TwoVar L1,L2
¸
ShowStat
¸
sign()
MATH/Number menu
sign(
expression1
)
⇒
⇒ ⇒
⇒
expression
sign(
list1
)
⇒
⇒ ⇒
⇒
list
sign(
matrix1
)
⇒
⇒ ⇒
⇒
matrix
For real and complex expression1 , returns
expression1 /
abs(
expression1
)
when expression1
ƒ
0.
Returns 1 if expression1 is positive.
Returns
ë
1 if expression1 is negative.
sign( 0 )
returns
„
1 if the complex format mode is
REAL
; otherwise, it returns itself.
sign( 0 )
represents the unit circle in the complex
domain.
For a list or matrix, returns the signs of all the
elements.
sign(
ë
3.2)
¸ ë
1.
sign({2,3,4,
ë
5})
¸
{1 1 1
ë
1}
sign(1+abs(x))
¸
1
If complex format mode is
REAL
:
sign([
ë
3,0,3])
¸
[
ë
1
„
1 1]
Inserts 0 if leftmost bit is 0,
or 1 if leftmost bit is 1.
Each bit shifts right.
Dropped