Casio FX-7400GII, User Manual

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8-18
Receive38k / Send38k
Function: Executes data send and receive at a data rate of 38 kbps.
Syntax: Send38k <expression>
<variable name>
Receive38k
<list name>
Description:
• The OpenComport38k command must be executed before this command is executed.
• The CloseComport38k command must be executed after this command is executed.
• If this command is executed when the communication cable is not connected, program
execution will continue without generating an error.
I
Conditional Jump Relational Operators (REL)
=,
x
, >, <,
r
,
b
Function: These relational operators are used in combination with the conditional jump
command.
Syntax: <left side> <relational operator> <right side>
Parameters:
• left side/right side: variable (A to Z,
r
,
Q
), numeric constant, variable expression (such as:
A s 2)
• relational operator: =,
x
, >, <,
r
,
b
I
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 8-17).
• 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 (CHAR) (SYBL)
in the PRGM mode, or from the String category of the catalog that appears when you press
C (CATALOG).
• You can assign strings to string memory (Str 1 through Str 20). For details about strings, see
“String Memory” (page 2-7).
• You can use the “+” command (page 8-20) 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.