Texas Instruments TI-83 PLUS - Manual (Page 523)

TI-83 Plus Programming 520
Program Output
IS>(
IS>( (increment and skip) adds 1 to variable. If the answer is > value (which
can be an expression), the next command is skipped; if the answer is {
value , the next command is executed. variable cannot be a system variable.
:IS>( variable , value )
: command (if answer  value )
: command (if answer > value )
Program Output
Note: IS>( is not a looping instruction.