Calculate Spectrum of Local Scaling Exponents
f = FracSingSpect(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
section 6.5.2 of Mallat's book