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!x
— generate values
+N
— compute positive
-N
— compute negative
.x
— dereference variable
/x
— check for null value
=s
— match string in scanning
?x
— generate random value
@C
— activate co-expression
\x
— check for non-null value
^C1
— create refreshed co-expression
|expr
— evaluate repeatedly
~c1
— compute cset complement
∗x
— compute size
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Index of Subsystems:
base
digitcnt.icn
SNOBOL4 functions
base
—
math
cos
compute cosine
Description
r2 cos(r1)
cos
(
r1
) produces the cosine of
r1
, which is in radians.
Parameters
r1
angle in
radians
returns
0 ≤
r2
≤ 1
Errors
102
r2
is not real