Texas Instruments Voyage 200, Руководство пользователя

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Appendix A: Functions and Instructions 821
FnOn
CATALOG
FnOn
Selects all Y= functions that are defined for the
current graphing mode.
In split-screen, two-graph mode,
FnOn
only
applies to the active graph.
FnOn [1] [, 2] ... [,99]
Selects the specified Y= functions for the current
graphing mode.
Note: In 3D graphing mode, only one function at
a time can be selected.
FnOn 2
selects
z2(x,y)
and
deselects any previously selected function. In the
other graph modes, previously selected functions
are not affected.
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"