Difference between revisions of "Cos"

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==Description==
 
==Description==
This function calculates the [http://mathworld.wolfram.com/Cosine.html cosine] of an angle '''e''' defined in [http://en.wikipedia.org/wiki/Radian radians]. The cosine of an angle is the ratio of the length of the adjacent side to the length of the hypotenuse. It is a [http://en.wikipedia.org/wiki/Trigonometric_functions trigonometric function].
+
This function calculates the [http://mathworld.wolfram.com/Cosine.html cosine] of an angle '''e''', defined in [http://en.wikipedia.org/wiki/Radian radians]. The cosine of an angle is the ratio of the length of the adjacent side to the length of the hypotenuse. It is a [http://en.wikipedia.org/wiki/Trigonometric_functions trigonometric function].
  
 
==Example==
 
==Example==

Revision as of 00:56, 3 July 2011

Definition

function Cos(e: Extended): Extended;

Availability

SCAR Divi 3.00 > Current

Description

This function calculates the cosine of an angle e, defined in radians. The cosine of an angle is the ratio of the length of the adjacent side to the length of the hypotenuse. It is a trigonometric function.

Example

begin
  WriteLn(Cos(Pi));
  WriteLn(Cos(0));
end.

Output:

-1
1

See Also