Problem 44845. Just another sum (JAS)

Solution 1722571

Submitted on 7 Feb 2019 by Alfonso Nieto-Castanon

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Test	Status	Code Input and Output
1	Pass	x=[ 1.000000000000 2.000000000000 3.000000000000 4.000000000000 5.000000000000 6.000000000000 7.000000000000 8.000000000000 9.000000000000 10.000000000000 ]; y=sol(x); yref=-5.000000000000 assert(abs(y-yref)<1e-6); yref = -5
2	Pass	x=[ 2.000000000000 4.000000000000 8.000000000000 16.000000000000 32.000000000000 64.000000000000 128.000000000000 256.000000000000 512.000000000000 1024.000000000000 ]; y=sol(x); yref=-682.000000000000 assert(abs(y-yref)<1e-6); yref = -682
3	Pass	x=[ 1.000000000000 4.000000000000 9.000000000000 16.000000000000 25.000000000000 36.000000000000 49.000000000000 64.000000000000 81.000000000000 100.000000000000 ]; y=sol(x); yref=-55.000000000000 assert(abs(y-yref)<1e-6); yref = -55
4	Pass	x=[ 1.000000000000 8.000000000000 27.000000000000 64.000000000000 125.000000000000 216.000000000000 343.000000000000 512.000000000000 729.000000000000 1000.000000000000 ]; y=sol(x); yref=-575.000000000000 assert(abs(y-yref)<1e-6); yref = -575
5	Pass	x=[ 1.000000000000 0.500000000000 0.333333333333 0.250000000000 0.200000000000 0.166666666667 0.142857142857 0.125000000000 0.111111111111 0.100000000000 ]; y=sol(x); yref=0.645634920635 assert(abs(y-yref)<1e-6); yref = 0.6456
6	Pass	x=[ 0.243132468125 -0.107772980466 0.155477890178 -0.328813312188 0.206046088020 -0.468167153623 -0.223077015039 -0.453828609369 -0.402868218764 0.323457828327 ]; y=sol(x); yref=1.013835439837 assert(abs(y-yref)<1e-6); yref = 1.0138

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