Words that Use Numbers

The words we know in Logo can do something different if you type different numbers after them. FD 100 draws a line with 100 steps in it, and FD 50 draws a line with only 50 steps in it.

We can make our new words use numbers too. Let’s change our SQUARE word to draw squares of different sizes:

TO SQUARE :SIZE
    REPEAT 4 [FD :SIZE RT 90]
END

Now you can tell Logo to:

SQUARE 50

or

SQUARE 100

Here’s another cool program. What does it do?

REPEAT 100 [SQUARE REPCOUNT RT 10]