public override int inverse(Block vb, Object vl, float[][] fin, int[] nonzero, int ch)
{
//System.err.println("Residue0.inverse");
int used=0;
for(int i=0;i<ch;i++)
{
if(nonzero[i]!=0)
{
fin[used++]=fin[i];
}
}
if(used!=0)
return(_01inverse(vb, vl, fin, used, 0));
else
return(0);
}