User:System86/Cos

Implements the mathematical cosine function, from an input in radians. Implemented with the #expr parser function.

For the value of pi, you can actually use "pi".

Usage:

{{Cos|radians}}

Examples:

• cos(- π  ) = -1
• cos(-5π/6) = -0.86602540378444
• cos(-3π/4) = -0.70710678118655
• cos(-2π/3) = -0.5
• cos(- π/2) = 6.1232339957368E-17
• cos(- π/3) = 0.5
• cos(- π/4) = 0.70710678118655
• cos(- π/6) = 0.86602540378444
• cos(  0  ) = 1
• cos(  π/6) = 0.86602540378444
• cos(  π/4) = 0.70710678118655
• cos(  π/3) = 0.5
• cos(  π/2) = 6.1232339957368E-17
• cos( 2π/3) = -0.5
• cos( 3π/4) = -0.70710678118655
• cos( 5π/6) = -0.86602540378444
• cos(  π  ) = -1
• cos( 3π/2) = -1.836970198721E-16
• cos( 2π  ) = 1
• cos( 5π/2) = 3.0616169978684E-16
• cos( 3π  ) = -1
• cos( 7π/2) = -4.2862637970157E-16
• cos( 4π  ) = 1

See also:

• Template:Sin