# **goniom**(A) plots an **A** degree **angle** (with an automatic scale) or, better:
# draws a quarter of goniometer, plots the angle, displays the coordinates of the
# corresponding point of the circle and the corresponding **slope**
goniom(45)
goniom(60)
goniom(30)
# The ordinate of the grey point is the same as the slope.
goniom(26.565)
# With **gonioM**(a), you can choose (by using BF and HF) other scales.
#
# **goniome**(S) plots the angle that has the **slope** equal to **S**
# A 40 m high tower projects a 24 m shade (40/24 = 166.67%):
goniome(40/24)
# With **gonioMe**(a), you can choose (by using BF and HF) other scales.