Casio FX-CG10, Руководство пользователя

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8-25
k
Strings
A string is a series of characters enclosed in double quotes. In a program, strings are used
to specify display text. A string made up of numbers (like "123") or an expression (like "
x
–1")
cannot be processed as a calculation.
To display a string at a specific location on the screen, use the Locate command (page 8-23).
• To include double quotes (") or a backslash (\) in a string, put a backslash (\) in front of the
double quotes (") or backslash (\).
Example 1: To include Japan: “Tokyo” in a string
"Japan:\"Tokyo\""
Example 2: To include main\abc in a string
"main\\abc"
You can input a backslash from the menu that appears when you press
6
(CHAR)
2
(SYMBOL) in the Program mode, or from the String category of the catalog that appears
when you press
!
e
(CATALOG).
• You can assign strings to string memory (Str 1 through Str 20). For details about strings, see
“String Memory” (page 2-8).
• You can use the “+” command (page 8-27) to connect strings inside of an argument.
• A function or command within a string function (Exp(, StrCmp(, etc.) is treated as a single
character. For example, the “sin” function is treated as a single character.
Exp(
Function: Converts a string to an expression, and executes the expression.
Syntax: Exp("<string>"[)]
Exp
' '
Str(
Function: Converts a graph expression to a string and assigns it to the specified variable.
Syntax: Exp
'
Str(<formula>, <string variable name>[)]
Description: A graph expression (Y
n
, r, X
t
, Y
t
, X), recursion formula (
a
n
,
a
n +1
,
a
n +2
,
b
n
,
b
n +1
,
b
n +2
,
c
n
,
c
n +1
,
c
n +2
), or function memory (f
n
) can be used as the first argument (<formula>).
StrCmp(
Function: Compares “<string 1>” and “<string 2>” (character code comparison).
Syntax: StrCmp("<string 1>", "<string 2>"[)]
Description: Compares two strings and returns one of the following values.
Returns 0 when “<string 1>” = “<string 2>”.
Returns 1 when “<string 1>” > “<string 2>”.
Returns –1 when “<string 1>” < “<string 2>”.