798
Appendix A: Functions and Instructions
For
CATALOG
For
var
,
low
,
high
[
,
step
]
block
EndFor
Executes the statements in
block
iteratively for each
value of
var
, from
low
to
high
, in increments of
step
.
var
must not be a system variable.
step
can be positive or negative. The default value is
1.
block
can be either a single statement or a series of
statements separated with the “:” character.
Program segment:
©
:0
!
tempsum : 1
!
step
:For i,1,100,step
: i
!
tempsum
:EndFor
:Disp tempsum
©
Contents of
tempsum
after
execution:
5050
Contents of
tempsum
when
step
is changed to
2
:
2500
format()
MATH/String menu
format(
expression[, formatString]
)
⇒
string
Returns
expression
as a character string based on
the format template.
expression
must simplify to a number.
formatString
is
a string and must be in the form: “
F
[
n
]
”, “
S[
n
]
”,
“
E[
n
]
”, “
G[
n
][
c
]
”, where
[ ]
indicate optional portions.
F[
n
]
: Fixed format.
n is the number of digits to
display after the decimal point.
S[
n
]
: Scientific format.
n is the number of digits to
display after the decimal point.
E[
n
]
: Engineering format.
n is the number of digits
after the first significant digit. The exponent is
adjusted to a multiple of three, and the decimal point
is moved to the right by zero, one, or two digits.
format(1.234567,"f3")
¸
"1.235"
format(1.234567,"s2")
¸
"1.23
í
0"
format(1.234567,"e3")
¸
"1.235
í
0"
format(1.234567,"g3")
¸
"1.235"
format(1234.567,"g3")
¸
"1,234.567"
format(1.234567,"g3,r:")
¸
"1:235"
G[
n
][
c
]
: Same as fixed format but also separates
digits to the left of the radix into groups of three.
c
specifies the group separator character and defaults
to a comma. If
c is a period, the radix will be shown
as a comma.
[R
c
]
: Any of the above specifiers may be suffixed
with the
R
c radix flag, where c is a single character
that specifies what to substitute for the radix point.
fPart()
MATH/Number menu
fPart(
expression1
)
⇒
expression
fPart(
list1
)
⇒
list
fPart(
matrix1
)
⇒
matrix
Returns the fractional part of the argument.
For a list or matrix, returns the fractional parts of the
elements.
The argument can be a real or a complex number.
fPart(
ë
1.234)
¸
ë
.234
fPart({1,
ë
2.3, 7.003})
¸
{0
ë
.3 .003}
Summary of Contents for Titanium TI-89
Page 9: ...Getting Started 6 TI 89 Titanium keys Ë Ì Í Ê ...
Page 34: ...Getting Started 31 2 or D 2 B u s i n e s s D B D B Press Result ...
Page 43: ...Getting Started 40 3 0 D B D D B D Press Result ...
Page 44: ...Getting Started 41 D 2 0 0 2 D B Scroll down to October and press Press Result ...
Page 58: ...Getting Started 55 Example Set split screen mode to TOP BOTTOM Press Result 3 B D ...
Page 70: ...Getting Started 67 ...
Page 175: ...Operating the Calculator 172 From the Keyboard ...
Page 456: ...Tables 453 ...
Page 527: ...Data Matrix Editor 524 ...
