cosine
- Noun. (trigonometry) In a right triangle, the ratio of the length of the side adjacent to an acute angle to the length of the hypotenuse. Symbol: cos.
- Noun. (mathematics) The ''x'' coordinate of the point on the unit circle at the given anticlockwise angle from the ''x'' axis.
- Noun. (mathematics) The sum of the real or complex power series.
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This entry was last updated on RefTopia from its source on 3/20/2012.