:ķ˫

ʽ:Acoth(a)

˵:aΪݻ߾,Ϊʱ,ֵǶԾÿһݽAcoth.

ע:aһΪd,(d+1)/(d-1)0,򷵻ص.

:

a =
[ 3.00000000000000  5.00000000000000  4.00000000000000
  5.00000000000000  2.00000000000000  5.00000000000000  ]

acoth(a)//س
ans =
[ 0.34657359027997  0.20273255405408  0.25541281188299
  0.20273255405408  0.54930614433405  0.20273255405408  ]