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Use SET changes the text output attributes for a given stream.
FONT
font-ordinal
POINTS
point-size
ANGLE
text-angle
WRAP
truth-vafue
SGN
(see Chapter 3)
Use SGN is a function
which
returns
the
sign of the value of its argument.
where argument
is a
numeric-expression.
SHAPE
(see Chapter
12)
Syntax
SHAPE
[I/stream-number, I point, point, point
[,
point)..,
if,)
attribute)...
or: COLOUR
colour-number
or: COLOR
colour-number
or: MODE
write-mode
SHARED
(see Chapter 6)
Use SHARED makes global variables directly available to routines.
Syntax
SHARED
shared-object[, shared-object)...
where
furmal-var is simple-variable
or
array-identifier)
[ ) ..
br
array-identifier [
[, )
...
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