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Added polygamma function.

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Till Hoffmann
2016-04-01 14:35:21 +01:00
parent dd5d390daf
commit 57239f4a81
9 changed files with 118 additions and 5 deletions
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9
Eigen/src/plugins/ArrayCwiseUnaryOps.h
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@@ -24,6 +24,7 @@ typedef CwiseUnaryOp<internal::scalar_cosh_op<Scalar>, const Derived> CoshReturn
typedef CwiseUnaryOp<internal::scalar_lgamma_op<Scalar>, const Derived> LgammaReturnType;
typedef CwiseUnaryOp<internal::scalar_digamma_op<Scalar>, const Derived> DigammaReturnType;
typedef CwiseUnaryOp<internal::scalar_zeta_op<Scalar>, const Derived> ZetaReturnType;
typedef CwiseUnaryOp<internal::scalar_polygamma_op<Scalar>, const Derived> PolygammaReturnType;
typedef CwiseUnaryOp<internal::scalar_erf_op<Scalar>, const Derived> ErfReturnType;
typedef CwiseUnaryOp<internal::scalar_erfc_op<Scalar>, const Derived> ErfcReturnType;
typedef CwiseUnaryOp<internal::scalar_pow_op<Scalar>, const Derived> PowReturnType;
@@ -338,6 +339,14 @@ zeta() const
return ZetaReturnType(derived());
}
/** \returns an expression of the coefficient-wise polygamma function.
*/
inline const PolygammaReturnType
polygamma() const
{
return PolygammaReturnType(derived());
}
/** \returns an expression of the coefficient-wise Gauss error
* function of *this.
*