Calculate Spectrum of Local Scaling Exponents
f = CalcFracSpectrum(z,q,alpha)
matrix 1 by nq of tau(q) ``Moment Gen Func''
optional list of exponents. Default linspace(-2,5,61)'
optional list of dimensions. Default linspace(.1,.9,11)
vector 1 by length(alpha) of fractal dimensions
f(alpha) = min( alpha q - tau(q))