| Functional Derivative |
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| CATEGORIES ABOUT FUNCTIONAL DERIVATIVE | |
| differential calculus | |
| topological vector spaces | |
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Two possible, restricted definitions suitable for certain computations are given here. There are more general definitions of functional derivatives. For a Functional ''F'' mapping ( Continuous / Smooth /with certain Boundary Condition s/etc.) Functions φ from a Manifold ''M'' to R or '''C''', the '''functional derivative''' of ''F'', denoted δ''F'' is a Distribution such that for all Test Function s ''f'', |
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