nLab trigonometry -- contents

trigonometry

• Euclidean space

• triangle

• angle, arc length

• trigonometric function

  • cosine

  • sine

  • tangent

  • cotangent

  • secant?

  • cosecant?

• inverse trigonometric function

  • arccos

  • arcsin

  • arctan

  • …

• trigonometric identity

  • Euler's formula

• hyperbolic function

• elliptic function