Using two different grids grids Imag axis INVEPS: 0.00000 0.07971 0.00000 INVEPS: 1.00000 0.08406 0.00000 INVEPS: 2.00000 0.09645 -0.00000 INVEPS: 3.00000 0.11541 -0.00000 INVEPS: 4.00000 0.13945 0.00000 INVEPS: 5.00000 0.16731 0.00000 INVEPS: 10.00000 0.33195 0.00000 INVEPS: 15.00000 0.48916 0.00000 INVEPS: 20.00000 0.61261 -0.00000 INVEPS: 25.00000 0.70368 0.00000 INVEPS: 30.00000 0.76899 0.00000 Real axis 0.00000 0.07979 -0.00000 0.50000 0.07870 -0.00060 1.00000 0.07531 -0.00119 1.50000 0.06932 -0.00189 2.00000 0.06037 -0.00313 2.50000 0.04828 -0.00574 3.00000 0.03343 -0.01073 3.50000 0.01688 -0.01877 4.00000 -0.00011 -0.02968 4.50000 -0.01679 -0.04256 5.00000 -0.03320 -0.05640 5.50000 -0.04990 -0.07058 6.00000 -0.06756 -0.08491 6.50000 -0.08677 -0.09951 7.00000 -0.10803 -0.11461 7.50000 -0.13174 -0.13053 8.00000 -0.15828 -0.14765 8.50000 -0.18801 -0.16634 9.00000 -0.22135 -0.18707 9.50000 -0.25873 -0.21036 10.00000 -0.30069 -0.23686 10.50000 -0.34784 -0.26735 11.00000 -0.40088 -0.30286 11.50000 -0.46068 -0.34471 12.00000 -0.52821 -0.39462 12.50000 -0.60460 -0.45495 13.00000 -0.69112 -0.52889 13.50000 -0.78906 -0.62089 14.00000 -0.89957 -0.73724 14.50000 -1.02316 -0.88697 15.00000 -1.15858 -1.08315 15.50000 -1.30042 -1.34472 16.00000 -1.43388 -1.69836 16.50000 -1.52400 -2.17843 17.00000 -1.49625 -2.81701 17.50000 -1.21424 -3.60404 18.00000 -0.50355 -4.39410 18.50000 0.66931 -4.83857 19.00000 1.96266 -4.62145 19.50000 2.89063 -3.86632 20.00000 3.30845 -2.97855