Function: shearfind

SHEARFIND  Shears for transformation of a general lattice to separable
  Usage:  [s0,s1,br] = shearfind(L,a,M,lt);

  [s0,s1,br]=SHEARFIND(L,a,M,lt) computes three numbers, the first two
  represent a frequency and time shear respectively. With the returned
  choices of s_0 and s_1 one can transform an initial lattice given by
  a, M and lt into a separable (rectangular) lattice given by 

      ar = a*L/(br*M)  and  Mr = L/br.

  If s_0 is non-zero, the transformation from general to separable
  lattice requires a frequency-side shear. Similarly, if s_1 is
  non-zero, a time-side shear is required.

Url: http://ltfat.github.io/doc/gabor/shearfind.html

See also: pchirp, matrix2latticetype.

Package: ltfat