Section "trigo"

The basic evaluable functions take integer and float arguments. The math evaluable functions take float arguments and automatically convert integer arguments to float. We provide math evaluable functions from the ISO core standard and its corrigendas.

The following math evaluable functions are provided:

sin(A, B): [ISO 9.3.2]
The predicate succeeds in B with the sine of A.
cos(A, B): [ISO 9.3.3]
The predicate succeeds in B with the cosine of A.
tan(A, B): [TC2 9.3.14]
The predicate succeeds in B with the tangent of A.
asin(A, B): [TC2 9.3.11]
The predicate succeeds in B with the arcus sine of A.
acos(A, B): [TC2 9.3.12]
The predicate succeeds in B with the arcus cosine of A.
atan(A, B): [ISO 9.3.4]
The predicate succeeds in B with the arcus tangent of A.
pi(A): [TC2 9.3.15]
The predicate succeeds in B with the bitwise not of A.
**(A, B, C): [ISO 9.3.1]
The predicate succeeds in C with A float power by B.
exp(A, B): [ISO 9.3.5]
The predicate succeeds in B with e power by A.
log(A, B): [ISO 9.3.6]
The predicate succeeds in B with the natural logarithm of A.
sqrt(A, B): [ISO 9.3.7]
The predicate succeeds in B with the square root of A.
e(A): [N208 9.7.2]
The predicate succeeds in A with the Euler number.
epsilon(A): [N208 9.7.3]
The predicate succeeds in A with the machine epsilon.
atan2(A, B, C): [TC2 9.3.13]
The predicate succeeds in C with the arc tangent of A and B.

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