1*c4762a1bSJed Brown10=>20, interp err = 0.0000e+00 2*c4762a1bSJed Brown20=>40, interp err = 0.0000e+00 3*c4762a1bSJed Brown40=>80, interp err = 0.0000e+00 4*c4762a1bSJed Brown80=>160, interp err = 0.0000e+00 5*c4762a1bSJed Brown160=>320, interp err = 0.0000e+00 6*c4762a1bSJed Brown320=>640, interp err = 0.0000e+00 7