TI-Basic 84 Programming/Control Flow Statements

If If, PRGM:CTL:1 is a command that, when it's condition is true, will execute the next line of code. If the condition happens to be false, then the program will skip to the second line of code after the statement. Syntax: If If condition Where condition either an (in)equality (X=3, A>B), or an expression (5+2X), which resolves to be either true (non-zero) or false (zero). Ex: If TEMP 5→X If X>3 Disp "X IS MORE THAN 3" Disp "END OF PROGRAM" X IS MORE THAN 3 END OF PROGRAM Else Else, PRGM:CTL:3 is a command that, when a previous If statement is not met, will execute the next line of code. If the condition happens to be false, then the program will skip to the second line of code after the statement. Syntax: Else If condition Then //some action Else //some other action Else executes when the condition in the If statement is not met. Ex: Else TEMP 5→X If X>3 Then Disp "X IS MORE THAN 3" Else Disp "X IS LESS THAN OR EQUAL TO 3" Disp "END OF PROGRAM" X IS MORE THAN 3 END OF PROGRAM Then Then, PRGM:CTL:2 is a command used to have a conditional statement (If or Then) execute a block of code as opposed to a single statement. Syntax: Then If condition Then //some code //some more code End Code block is started with a Then statement and ended with the End, PRGM:CTL:7 Input Test Conditions and Logical Operators