Synset

function of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angle
<noun.relation>

circular function

trigonometric function

semantic pointers

hypernym

function, mathematical function, single-valued function, map, mapping

hyponym

sine, sin arc sine, arcsine, arcsin, inverse sine cosine, cos arc cosine, arccosine, arccos, inverse cosine tangent, tan arc tangent, arctangent, arctan, inverse tangent cotangent, cotan arc cotangent, arccotangent, inverse cotangent secant, sec arc secant, arcsecant, arcsec, inverse secant cosecant, cosec arc cosecant, arccosecant, inverse cosecant