polynomial: x DDPOLY actual 0.100000 -0.590490 -0.590490 0.200000 -0.327680 -0.327680 0.300000 -0.168070 -0.168070 0.400000 -0.077760 -0.077760 0.500000 -0.031250 -0.031250 0.600000 -0.010240 -0.010240 0.700000 -0.002430 -0.002430 0.800000 -0.000320 -0.000320 0.900000 -0.000010 -0.000010 1.000000 0.000000 0.000000 1.100000 0.000010 0.000010 1.200000 0.000320 0.000320 1.300000 0.002430 0.002430 1.400000 0.010240 0.010240 1.500000 0.031250 0.031250 1.600000 0.077760 0.077760 1.700000 0.168070 0.168070 1.800000 0.327681 0.327680 1.900000 0.590491 0.590490 2.000000 1.000000 1.000000 press ENTER to continue... first deriv: x DDPOLY actual 0.100000 3.280500 3.280500 0.200000 2.048000 2.048000 0.300000 1.200500 1.200500 0.400000 0.648000 0.648000 0.500000 0.312500 0.312500 0.600000 0.128000 0.128000 0.700000 0.040500 0.040500 0.800000 0.008000 0.008000 0.900000 0.000501 0.000500 1.000000 0.000000 0.000000 1.100000 0.000500 0.000500 1.200000 0.008001 0.008000 1.300000 0.040499 0.040500 1.400000 0.128001 0.128000 1.500000 0.312500 0.312500 1.600000 0.648000 0.648000 1.700000 1.200500 1.200500 1.800000 2.048001 2.048000 1.900000 3.280502 3.280500 2.000000 5.000000 5.000000 press ENTER to continue... second deriv: x DDPOLY actual 0.100000 -14.580000 -14.579999 0.200000 -10.240001 -10.239999 0.300000 -6.859999 -6.860000 0.400000 -4.320000 -4.320000 0.500000 -2.500000 -2.500000 0.600000 -1.280001 -1.280000 0.700000 -0.540001 -0.540000 0.800000 -0.160001 -0.160000 0.900000 -0.019996 -0.020000 1.000000 0.000000 0.000000 1.100000 0.019999 0.020000 1.200000 0.160001 0.160000 1.300000 0.539999 0.540000 1.400000 1.280002 1.280000 1.500000 2.500000 2.500000 1.600000 4.319999 4.320000 1.700000 6.860001 6.860002 1.800000 10.240000 10.239998 1.900000 14.580003 14.579998 2.000000 20.000000 20.000000 press ENTER to continue... third deriv: x DDPOLY actual 0.100000 48.599998 48.600000 0.200000 38.399998 38.399999 0.300000 29.400002 29.399999 0.400000 21.600000 21.600001 0.500000 15.000000 15.000000 0.600000 9.599993 9.599999 0.700000 5.399999 5.400000 0.800000 2.400000 2.400000 0.900000 0.600008 0.600000 1.000000 0.000000 0.000000 1.100000 0.599997 0.600000 1.200000 2.400002 2.400001 1.300000 5.399997 5.399998 1.400000 9.600004 9.599999 1.500000 15.000000 15.000000 1.600000 21.599998 21.600001 1.700000 29.400003 29.400004 1.800000 38.399994 38.399996 1.900000 48.600002 48.599997 2.000000 60.000000 60.000000 press ENTER to continue... fourth deriv: x DDPOLY actual 0.100000 -108.000015 -107.999997 0.200000 -96.000023 -96.000001 0.300000 -83.999985 -83.999999 0.400000 -71.999985 -72.000003 0.500000 -60.000000 -60.000000 0.600000 -48.000011 -47.999997 0.700000 -36.000000 -36.000001 0.800000 -23.999998 -23.999999 0.900000 -11.999994 -12.000003 1.000000 0.000000 0.000000 1.100000 11.999997 12.000003 1.200000 24.000006 24.000006 1.300000 35.999992 35.999994 1.400000 48.000000 47.999997 1.500000 60.000000 60.000000 1.600000 72.000000 72.000003 1.700000 84.000008 84.000006 1.800000 95.999992 95.999994 1.900000 108.000000 107.999997 2.000000 120.000000 120.000000 press ENTER to continue...