cosine love

# cosine

## Definitions

### from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun In a right triangle, the ratio of the length of the side adjacent to an acute angle to the length of the hypotenuse.
• noun The abscissa at the endpoint of an arc of a unit circle centered at the origin of a Cartesian coordinate system, the arc being of length x and measured counterclockwise from the point (1, 0) if x is positive or clockwise if x is negative.

### from The Century Dictionary.

• noun In trigonom., the sine of the complement of a given angle (whose cosine it is).

### from the GNU version of the Collaborative International Dictionary of English.

• noun (Trig.) The sine of the complement of an arc or angle. See Illust. of functions.

• 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 ratio of the adjacent side to the hypotenuse of a right-angled triangle

## Etymologies

Sorry, no etymologies found.

## Support ## Examples

• Measuring Relational Similarity with VSM  The measure of similrity of R1 and R2 is given by the cosine of the angle Ɵ between r1 and r2: cosine  = ∑ r1, i. r2, i = r1. r2 = r1. r2

• So, if the current is sinusoidal, you know the derivative of a sine to be a cosine, which is 90° out of phase.

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• Did you know that it's possible to calculate a cosine even if you think "cosine" is a brand of nasal decongestant?

I Blame the Handheld Calculator

• Did you know that it's possible to calculate a cosine even if you think "cosine" is a brand of nasal decongestant?

I Blame the Handheld Calculator

• And so the sine and cosine are both negative multiples of their own second derivatives (in fact, the factor is – 1).

The Volokh Conspiracy » Pi Day

• And so the sine and cosine are both negative multiples of their own second derivatives (in fact, the factor is – 1).

The Volokh Conspiracy » Pi Day

• Starting from algebraic operations and simple analytical functions such as sine and cosine, the algorithm randomly re-combines previous equations and parameters, and tests each set of expressions for accuracy against the empirical data, until it reaches a desired level of accuracy.

Archive 2009-04-01

• Laboring in the House of Wisdom, al-Khwarizmi, a Persian by birth, combined the geometry of triangles and spheres with the verbal elaboration of equations to work out the first sine and cosine tables.

Clay Farris Naff: A Moment Of Opportunity For Muslims

• He reminded me of sine and cosine and complementary angles, all of which were things I believed in and knew to be true.

Chocolate & Vicodin

• He reminded me of sine and cosine and complementary angles, all of which were things I believed in and knew to be true.

Chocolate & Vicodin