Path: Math/Integration
% Fractional order derivative or integral
Implements a fractional order derivative or integral. Integrals are done
if alpha < 0
Type FracDI to take integrals and derivatives of a sine function
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Form:
u = FracDI(y,alpha,n,h)
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Inputs
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y (1,:) Input sequence - newest to oldest
alpha (1,1) -1 <= alpha <= 1 Negative are integrals
n (1,1) Maximum number of terms
h (1,1) Step size
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Outputs
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u (1,1) Output
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Reference: Roberto Garrappa, "A Grunwald–Letnikov scheme for
fractional operators of Havriliak–Negami type."
Recent Advances in Applied Mathematics, Modelling and
Simulation, 34, 70-76, 2014
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Common: Graphics/Plot2D
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