This example demonstrates the use of the previous packet. It draws a triangle, annotating its points and sides with names. Note that the coordinates of a, b and c should be chosen to fit the screen of the particular computer (see A.7).
The resulting picture looks like:
(315,160)
(010,010)(1,0)140
(150,010)(0,1)140
(010,010)(1,1)140
(010,010)A
(150,010)B
(150,150)C
(080,010)
(150,080)
(080,080)