Factorial

 n := FACTORIAL.INPUT     
 result := 1              
 REPEAT n                 
  result *= n+1           
 ENDREP                   
 FACTORIAL.RETURN(result) 
	

 FACTORIAL.INPUT 
  The integer written in the editable text input. 
  -> e.g. 5 
  
 MODULE.CALL.ARGS 
  Holds the list of arguments passed with MODULE.CALL. 
  -> [arg1, ..., argN] 

 FACTORIAL.RETURN(result) 
  End computation and show the calculated value. 
  -> result: calculated integer value 
  
 MODULE.CALL(&retvar1, ..., &retvarM, @modname, arg1, ..., argN) 
  Start executing module modname, copying N arguments and expecting M return values. 
  -> retvar: name of variable to hold the corresponding return value retval 
  -> modname: name of module to start executing 
  -> arg: value to be copied to the list MODULE.CALL.ARGS 
  Alternative syntax: retvar1, ..., retvarM := MODULE.CALL(@modname, arg1, ..., argN) 
  Note that recursive module calls are not allowed. 
  
 MODULE.RETURN(retval1, ..., retvalM) 
  Return M values from the current module. 
  Resume execution at the next instruction of the corresponding MODULE.CALL. 
  -> retval: value to be copied to the corresponding variable retvar