1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 1.10, 1.11, 1.12, 1.13, 1.14

- Example 1-1 uses
- PGENV to specify the range of the axes and to draw a box
- PGLAB to label it
- PGPT to plot points as little circles
- PGLINE to draw a line representing a function

- Example 1-2 similar to 1-1 but draws the function SIN(X)/X

- Example 1-3 uses
- PGSAVE and PGUNSA to save and restore plot characteristics
- PGSCI to change colours
- PGBOX to draw a grid
- PGSLS and PGSLW to change line characteristics

- Example 1-4 shows a histogram (example 4) and a log-log plot with
data points (example 5); it uses
- PGRNRM to generate a pseudo-random frequency distribution
- PGHIST to plot it as a histogram with a theoretical distribution superimposed

- Example 1-5 shows how to draw filled areas; it uses
- PGPOLY for polygons
- PGCIRC for circles
- PGRECT for rectangles

- Example 1-6 shows various symbols used for plotting points
deviating randomly from a parent distribution drawn as a curve.

- Example 1-7 shows some of the possibilities for overlapping windows and
viewports

- Example 1-8 illustrates curve drawing with PGFUNT (Lissajous' figure)

- Example 1-9 illustrates curve drawing with PGFUNX and shows how
to make a 'legend' with arrows pointing to the curves

- Example 1-10 draws a skeletal dodecahedron

- Example 1-11 shows the range of arrows which can be drawn
with PGARRO

- Example 1-12 shows the use of PGTBOX for making the scales
and labelling axes

- Example 1-13 polygon fill and colour representation

- Example 1-14 is a line-drawing test; it draws a regular n-gon
joining each vertex to every other vertex.

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