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cosine [ˈkəʊsaın] 名词数学

cosine

余弦 yúxián

单语范例（未经PONS编辑处理）

英语

The law of cosines can be used to determine a side of a triangle if two sides and the angle between them are known. en.wikipedia.org

Jy and koti-jy are closely related to the modern trigonometric functions of sine and cosine. en.wikipedia.org

Previously it was necessary to consult sine/cosine tables, a time-consuming process. en.wikipedia.org

This means that 1/7.0 is the cosine of 81.8 degrees, and so we can multiply 0.35 by 1/7.0 using the above procedure. en.wikipedia.org

On some processors, the cosine and sine of the same argument can be calculated in parallel using a single instruction. en.wikipedia.org

If the original function is an even function, then the sine transform is zero; if is an odd function, then the cosine transform is zero. en.wikipedia.org

It is interesting to note that the inverse cosine function yields two possible values for the argument. en.wikipedia.org

These identities are sometimes taken as the "definitions" of the sine and cosine function. en.wikipedia.org

If not, output is reduced by roughly the cosine of the angle with the perpendicular. en.wikipedia.org

The cosine accounts for the projection of the source area into a plane at right angles to the line of propagation indicated by. en.wikipedia.org

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