Osborne's Rule
The prescription that a Trigonometry identity can be converted to an analogous identity for Hyperbolic Functionsby expanding, exchanging trigonometric functions with their hyperbolic counterparts, and then flipping the sign of each terminvolving the product of two Hyperbolic Sines. For example, given the identity
Osborne's rule gives the corresponding identity
See also Hyperbolic Functions, Trigonometry
- Countably Infinite Set
- Counting Generalized Principle
- Counting Number
- Coupon Collector's Problem
- Covariance
- Covariance Matrix
- Covariant Derivative
- Covariant Tensor
- Covariant Vector
- Cover
- Covering
- Covering Dimension
- Covering System
- Cover Relation
- Coversine
- Coxeter Diagram
- Coxeter-Dynkin Diagram
- Coxeter Graph
- Coxeter Group
- Coxeter Matrix
- Coxeter's Loxodromic Sequence of Tangent Circles
- Coxeter-Todd Lattice
- Cox's Theorem
- Cramer's Rule
- Cramér Conjecture