Lines Matching refs:zp
81 double zp[2];
84 zp[0] = cos(th) * wa;
85 zp[1] = sin(th) * wa;
86 a_re = zp[0] + 2.0;
87 c_re = zp[0] - 2.0;
89 c_im = zp[1];
90 zp[0] = (a_re * c_re + a_im * c_im) / (c_re * c_re + c_im * c_im);
91 zp[1] = (a_im * c_re - a_re * c_im) / (c_re * c_re + c_im * c_im);
97 p[j][0] = a_re*zp[0] - a_im*zp[1] + p[j-1][0];
98 p[j][1] = a_re*zp[1] + a_im*zp[0] + p[j-1][1];
100 a_re = p[0][0]*zp[0] - p[0][1]*zp[1];
101 p[0][1] = p[0][0]*zp[1] + p[0][1]*zp[0];