rb2 = -fb0*a2; _f1[i1++] = makeFilter(b0,b1,b2,a1,a2); _f2[i2++] = makeFilter(fb0,fb1,fb2,a1,a2); _f2[i2++] = makeFilter(rb0,rb1,rb2,a1,a2); if (_nz==_np) c -= b0;
rb2 = -fb0*a2; _f1[i1++] = makeFilter(b0,b1,b2,a1,a2); _f2[i2++] = makeFilter(fb0,fb1,fb2,a1,a2); _f2[i2++] = makeFilter(rb0,rb1,rb2,a1,a2); if (_nz==_np) c -= b0;