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InverseBetaRegularized[s, a, b]
gives the inverse of the regularized incomplete beta function.
  • Mathematical function, suitable for both symbolic and numerical manipulation.
  • With the regularized incomplete beta function defined by I(z,a,b)=Beta(z,a,b)/Beta(a,b), InverseBetaRegularized[s, a, b] is the solution for z in s=I(z,a,b).
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