COS() - Cosine Trigonometric Value

Q

How to calculate the cosine trigonometric value of a given angle using the COS() function?

✍: FYIcenter.com

A

COS(X) is a MySQL built-in function that calculates the cosine trigonometric value of a given angle in radians. For example:

SELECT COS(0), COS(1.57), COS(3.14);
  -- +--------+-----------------------+---------------------+
  -- | COS(0) | COS(1.57)             | COS(3.14)           |
  -- +--------+-----------------------+---------------------+
  -- |      1 | 0.0007963267107332633 | -0.9999987317275395 |
  -- +--------+-----------------------+---------------------+

Reference information of the COS() function:

COS(X): val
  Returns the cosine of X, where X is given in radians.

Arguments, return value and availability:
  X: Required. The input angle in radians.
  val: Return value. The cosine of X.
  Available since MySQL 4.0.

Related MySQL functions:

ACOS() - Arccosine Trigonometric Value

⇒ COT() - Cotangent Trigonometric Value

⇐ CONV() - Number Base Conversion

⇑ MySQL Functions on Numeric Values

⇑⇑ MySQL Function References

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