Trigonometry Values Pi/10
 |  |  | |
|  | (1) |
So we have
 | |  | |
|  | ||
|  | (2) |
and
 | (3) |
| |  | (4) |
| |  | (5) |
 | |  | (6) |
 | |  | (7) |
 | |  | (8) |
 | |  | (9) |
An interesting near-identity is given by
 | (10) |
.See also Decagon, Decagram- Modular Gamma Function
- Modular Group
- Modular Lambda Function
- Modular Lattice
- Modular System
- Modular System Basis
- Modular Transformation
- Modulation Theorem
- Module
- Modulo
- Modulo Multiplication Group
- Modulus (Complex Number)
- Modulus (Congruence)
- Modulus (Elliptic Integral)
- Modulus (Quadratic Invariants)
- Modulus (Set)
- Moessner's Theorem
- Mohammed Sign
- Mollweide Projection
- Mollweide's Formulas
- Moment
- Momental Skewness
- Moment-Generating Function
- Monad
- Money-Changing Problem