He has log, but not exp.

Perhaps there's also something helpful in Math::BigFloat's _pow() sub: 
  # Taylor:       |   u    u^2    u^3         |
  # x ** y  = 1 + |  --- + --- + ----- + ...  |
  #               |_  1    1*2   1*2*3       _|

[download]
where (I gather) 
u = y * ln x

[download]
Cheers,
Rob

In reply to Re^3: [OT] Function to do x**y for |y|<1 w/o ** operator. by syphilis
in thread [OT] Function to do x**y for |y|<1 w/o ** operator. by swampyankee

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