Direct Product (Matrix)
Given an 
Matrix A and a 
Matrix B, their direct product 
is an 
Matrix with elements defined by
 | (1) |
 | (2) |
 | (3) |
Matrix A and a 
Matrix B, |  |  | |
|  |
- Fold Bifurcation
- Fold Catastrophe
- Folding
- Foliation
- Folium
- Folium of Descartes
- Follows
- Fontené Theorems
- Foot
- For All
- Forcing
- Ford Circle
- Ford's Theorem
- Forest
- Fork
- Form
- Formal Logic
- Form (Geometric)
- Formosa Theorem
- Form (Polynomial)
- Formula
- Fortunate Prime
- Forward Difference
- Fountain
- Four Coins Problem