[QUOTE=海风月影;684834]谁会解这个,教教我。。。
[/QUOTE]
它等价于求一元多次方程的解,
次数太高只能求它的近似解
k=3.23606797745时,
X8-0.5=7.2658103641441418237206038342213e-14
k=2.500000000000000-->X8-X0=0.099791326874127
k=3.250000000000000-->X8-X0=-0.004734795096228
k=2.875000000000000-->X8-X0=0.126568694727795
k=3.062500000000000-->X8-X0=0.071996142849137
k=3.156250000000000-->X8-X0=0.030549039477106
k=3.203125000000000-->X8-X0=0.011862185062102
k=3.226562500000000-->X8-X0=0.003322345296137
k=3.238281250000000-->X8-X0=-0.000762638944560
k=3.232421875000000-->X8-X0=0.001265264887133
k=3.235351562500000-->X8-X0=0.000247728995916
k=3.236816406250000-->X8-X0=-0.000258343219337
k=3.236083984375000-->X8-X0=-0.000005530132844
k=3.235717773437500-->X8-X0=0.000121043555426
k=3.235900878906250-->X8-X0=0.000057742757402
k=3.235992431640625-->X8-X0=0.000026102825696
k=3.236038208007813-->X8-X0=0.000010285475016
k=3.236061096191406-->X8-X0=0.000002377453263
k=3.236072540283203-->X8-X0=-0.000001576394242
k=3.236066818237305-->X8-X0=0.000000400515897
k=3.236069679260254-->X8-X0=-0.000000587942576
k=3.236068248748779-->X8-X0=-0.000000093714190
k=3.236067533493042-->X8-X0=0.000000153400641
k=3.236067891120911-->X8-X0=0.000000029843172
k=3.236068069934845-->X8-X0=-0.000000031935523
k=3.236067980527878-->X8-X0=-0.000000001046178
k=3.236067935824394-->X8-X0=0.000000014398496
k=3.236067958176136-->X8-X0=0.000000006676158
k=3.236067969352007-->X8-X0=0.000000002814990
k=3.236067974939942-->X8-X0=0.000000000884405
k=3.236067977733910-->X8-X0=-0.000000000080887
k=3.236067976336926-->X8-X0=0.000000000401759
k=3.236067977035418-->X8-X0=0.000000000160436
k=3.236067977384664-->X8-X0=0.000000000039775
k=3.236067977559287-->X8-X0=-0.000000000020556
k=3.236067977471976-->X8-X0=0.000000000009610
k=3.236067977515631-->X8-X0=-0.000000000005473
k=3.236067977493804-->X8-X0=0.000000000002068
k=3.236067977504717-->X8-X0=-0.000000000001702
k=3.236067977499261-->X8-X0=0.000000000000183
k=3.236067977501989-->X8-X0=-0.000000000000760
k=3.236067977500625-->X8-X0=-0.000000000000288
k=3.236067977499943-->X8-X0=-0.000000000000053
k=3.236067977499602-->X8-X0=0.000000000000065
k=3.236067977499772-->X8-X0=0.000000000000006
k=3.236067977499857-->X8-X0=-0.000000000000023
k=3.236067977499815-->X8-X0=-0.000000000000009
k=3.236067977499793-->X8-X0=-0.000000000000001
k=3.236067977499783-->X8-X0=0.000000000000002
k=3.236067977499788-->X8-X0=0.000000000000001
k=3.236067977499791-->X8-X0=-0.000000000000000
k=3.236067977499789-->X8-X0=0.000000000000000