When using Math.NET I often find myself having to convert a scalar into a vector or matrix, to match a particular function signature. The typical example would be a class that implements a probability distribution, which can be either univariate or multivariate:

var distribution = new SomeDistribution(...);double x = 1.3;double y = distribution.Density(Vector<double>.Build.Dense(1, x));...public class SomeDistribution{    public double Density(Vector<double> x)    {        ...    }    ...}

It would be nice to be able to pass the double directly in this case, and have it be automatically converted to a one-element vector. Same for matrix arguments, where scalar input could be automatically converted to a 1-by-1 matrix. Other solutions, such as overloading functions or making separate classes for the univariate cases, are cumbersome and lead to a lot of boilerplate.

I'm by no means a C# expert, but should this not be possible to implement withuser-defined implicit conversion operators?