Documentation

SpherePacking.ForMathlib.RadialSchwartz

theorem hasFDerivAt_norm_sq {F : Type u_1} [NormedAddCommGroup F] [InnerProductSpace F] {x : F} :
HasFDerivAt (fun (x : F) => x ^ 2) (2 (innerSL ) x) x
theorem fderiv_norm_sq {F : Type u_1} [NormedAddCommGroup F] [InnerProductSpace F] {x : F} :
fderiv (fun (x : F) => x ^ 2) x = 2 (innerSL ) x