Complex Multiplication
Two Complex Numbers 
and 
are multiplied as follows:
 |  |  | |
|  |
However, the multiplication can be carried out using only three Real multiplications,
, 
, and
as
Complex multiplication has a special meaning for Elliptic Curves.
See also Complex Number, Elliptic Curve, Imaginary Part, Multiplication, Real Part
References
Cox, D. A. Primes of the Form 
: Fermat, Class Field Theory and Complex Multiplication. New York: Wiley, 1997.
- Algebraic Surface
- Algebraic Tangle
- Algebraic Topology
- Algebraic Variety
- Algebroidal Function
- Algorithm
- Algorithmic Complexity
- Alhazen's Billiard Problem
- Alhazen's Problem
- Aliasing
- Aliquant Divisor
- Aliquot Cycle
- Aliquot Divisor
- Aliquot Sequence
- Alladi-Grinstead Constant
- Allais Paradox
- Allegory
- Allometric
- All-Poles Model
- Almost All
- Almost Alternating Knot
- Almost Alternating Link
- Almost Everywhere
- Almost Integer
- Almost Perfect Number