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D2d
Geometric figure
line
3D plot
Contour plot
Roots
d = 0
D = 0
Polynomial discriminant
Δ = 0
Property as a function
odd
Derivative
d/dd(D^2 d) = D^2
Indefinite integral
integral D^2 d dd = (d^2 D^2)/2 + constant
Definite integral over a square of edge length 2 L
integral_(-L)^L integral_(-L)^L d D^2 dD dd = 0
Definite integral over a disk of radius R
integral integral_(d^2 + D^2