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Add missing ArrayBase::log1p

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This commit is contained in:
Gael Guennebaud 2016-06-01 17:08:47 +02:00
parent 89099b0cf7
commit 3c69afca4c
1 changed files with 15 additions and 0 deletions
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15
Eigen/src/plugins/ArrayCwiseUnaryOps.h
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@ -11,6 +11,7 @@ typedef CwiseUnaryOp<internal::scalar_boolean_not_op<Scalar>, const Derived> Boo
typedef CwiseUnaryOp<internal::scalar_exp_op<Scalar>, const Derived> ExpReturnType;
typedef CwiseUnaryOp<internal::scalar_log_op<Scalar>, const Derived> LogReturnType;
typedef CwiseUnaryOp<internal::scalar_log1p_op<Scalar>, const Derived> Log1pReturnType;
typedef CwiseUnaryOp<internal::scalar_log10_op<Scalar>, const Derived> Log10ReturnType;
typedef CwiseUnaryOp<internal::scalar_cos_op<Scalar>, const Derived> CosReturnType;
typedef CwiseUnaryOp<internal::scalar_sin_op<Scalar>, const Derived> SinReturnType;
@ -111,6 +112,20 @@ log() const
return LogReturnType(derived());
}
/** \returns an expression of the coefficient-wise logarithm of 1 plus \c *this.
*
* In exact arithmetic, \c x.log() is equivalent to \c (x+1).log(),
* however, with finite precision, this function is much more accurate when \c x is close to zero.
*
* \sa log()
*/
EIGEN_DEVICE_FUNC
inline const Log1pReturnType
log1p() const
{
return Log1pReturnType(derived());
}
/** \returns an expression of the coefficient-wise base-10 logarithm of *this.
*
* This function computes the coefficient-wise base-10 logarithm.