This is a logotype package and, for those who are not familiar with this language, this is a new command set for picture drawing in which all commands act as if there was a creature doing the movement. For example, the command F50 moves the creature (turtle) forward 50 units and draws a line where it has walked. The language is very simple to learn, as it is related to body movement.

It also includes the ability to define words which can be long sequences of commands, e.g. draw a square. The use of defined words in further words is allowed, giving a good programming structure.

This implementation is good and fairly comprehensive although it does have its idiosyncrasies. One of these is the inability to type the commands in the same mode as the display is drawn, meaning that you cannot see the result of a command as it is drawing.

On the plus side are the excellent range of variables and functions and the printer routines. All told a good, robust, capable package.

D.C.