Trig Functions

Trig Functions
Circular Functions

The six functions sine, cosine, tangent, cosecant, secant, and cotangent. These functions can be defined several different ways. These include SOHCAHTOA definitions, circle definitions (below), and unit circle definitions.

Circle with point (x,y) on radius r; defines sin=y/r, cos=x/r, tan=y/x, csc=r/y, sec=r/x, cot=x/y.

See also

Inverse trig functions