8-25k StringsA string is a series of characters enclosed in double quotes. In a program, strings are usedto 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 thedouble 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 appearswhen 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 singlecharacter. 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(""[)]Exp''Str(Function: Converts a graph expression to a string and assigns it to the specified variable.Syntax: Exp 'Str(, [)]Description: A graph expression (Y n, r, X t, Y t, X), recursion formula (a n, an+1, an+2, bn, bn+1, bn+2 ,cn, cn+1, cn+2), or function memory (fn) can be used as the first argument ().StrCmp(Function: Compares “” and “” (character code comparison).Syntax: StrCmp("", ""[)]Description: Compares two strings and returns one of the following values.Returns 0 when “” = “”.Returns 1 when “” > “”.Returns –1 when “” < “”.
