Trig Functions

Drag the point to see how the trig functions react!

Angle presets:

Line segment lengths:

\( \theta \): \( \sin(\theta) \): \( \cos(\theta) \): \( \tan(\theta) \): \( \csc(\theta) \): \( \sec(\theta) \): \( \cot(\theta) \): \( \abs{ \mathrm{Tangent\ line} } \):

Labels:

Show labels:

Show segments:

Circle and radius:

Circle:
Radius:

Trig ratios:

sin(θ):
cos(θ):
tan(θ):

Reciprocal trig ratios:

csc(θ):
sec(θ):
cot(θ):

Common trig constants:

\( \sqrt{2} \) =

\( \sqrt{2} \over 2 \) =

\( \sqrt{2} \over 3 \) =