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versed sine

American  

noun

Trigonometry.
  1. one minus the cosine of a given angle or arc. vers.


versed sine British  

noun

  1.  vers.  a trigonometric function equal to one minus the cosine of the specified angle

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of versed sine

First recorded in 1590–1600

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

If closer accuracy is demanded, we can attain it, by taking the versed sine for 1°, and multiplying this by 6².

From Scientific American Supplement, No. 531, March 6, 1886 by Various

The measure of this deflection; the versed sine of the angle. 4th.

From Scientific American Supplement, No. 531, March 6, 1886 by Various

Now, I suspect that some of you--some of those whom I am directly addressing--may not know what the versed sine of an angle is; so I must tell you.

From Scientific American Supplement, No. 531, March 6, 1886 by Various

After five coolings, a bar of iron, 28 inches long, 31⁄2 inches deep, and 1⁄2 inch thick, was curved so that the versed sine of its air-cooled edge was 11⁄2 inches.

From Modern Machine-Shop Practice, Volumes I and II by Joshua Rose

Measuring the deflection in question—which is equivalent to the so-called versed sine of the arc traversed—we have a basis for determining the strength of the deflecting force.

From A History of Science — Volume 2 by Henry Smith Williams

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