Trigonometric Substitution
Integrals of the form
 | (1) |
so that 
and expressing | (2) |
 | (3) |
Alternatively, making the substitution 
transforms (1) into
 | (4) |
| Form | Substitution |
 |  |
 |  |
 |  |
- Dirac Delta Function
- Dirac Matrices
- Dirac's Theorem
- Directed Angle
- Directed Graph
- Directional Derivative
- Direction Cosine
- Directly Similar
- Director Curve
- Direct Product (Group)
- Direct Product (Matrix)
- Direct Product (Set)
- Direct Product (Tensor)
- Directrix (Conic Section)
- Directrix (Graph)
- Directrix (Ruled Surface)
- Direct Search Factorization
- Direct Sum (Module)
- Dirichlet Beta Function
- Dirichlet Boundary Conditions
- Dirichlet Conditions
- Dirichlet Divisor Problem
- Dirichlet Energy
- Dirichlet Eta Function
- Dirichlet Fourier Series Conditions