Spot operator: opHeaviside Spot Home Page
opHeaviside
 opHeaviside   Heaviside operator.
 
    opHeaviside(N,NORMALIZED) creates an operator for multiplication
    by an N by N Heaviside matrix. These matrices have ones below and
    on the diagonal and zeros elsewhere. NORMALIZED is a flag
    indicating whether the columns should be scaled to unit Euclidean
    norm. By default the columns are unnormalized.