The
and
keys are used to tell **PIP** to move **forwards** or
**backwards**. After you press these you must press some numbers
to tell **PIP** how far to go. Usually the number you give will be
the number of centimetres **PIP** will go (see advanced
features).

Try this little program:-

**PIP** will move forwards 10 centimetres and
then **sing**.

You can make the program longer by pressing:-

**PIP** will do the old commands and then the
new ones. It will move forwards 10 centimetres, then backwards 10
centimetres. If all is well it will then **sing**.

The numbers you give **PIP** for distances can
be as much as 999. If you try to enter the number 0, **PIP** will
**grumble**.

The
and
keys tell **PIP** to turn left or right (anticlockwise or
clockwise). After you press these you must enter a number to tell
**PIP** how far to turn. Usually the number will be the number of
degrees **PIP** will turn (see
advanced features). 360 degrees make a
complete circle.

You can make **PIP** go anywhere using the
**turn**, **forwards** and **backwards** arrows. This
program will make **PIP** follow a square path:-