CODEWITHSUNDEEP
c#math.net
Dan
Dan

Reputation: 77

Difference between Double.Vector and Vector<double>

I've got problem with types while working with vectors in MathNet. I'm using using MathNet.Numerics.LinearAlgebra.Double; so all Vectors and Matrices are type Double.Vector etc. But for example if I want to get particular row from matrix ->

V.Row(V.RowCount-1);

it returns type Vector<double>, so this throws "cant convert" error:

Vector v = myMatrix.Row(0);

Is there some Vector<double> to Double.Vector convertor or trick how its done?

Upvotes: 2

Views: 2561

Answers (1)

Christoph R&#252;egg
Christoph R&#252;egg

Reputation: 4736

Double.Vector inherits Vector<double>, so normal type casting should work, e.g. Vector v = (Vector)myMatrix.Row(0);.

However, since Math.NET Numerics v3 it is recommended to use the generic types only (Vector<double>). The API is designed such that with the generic types you never have to do any such conversions or casts. There's even no need to open the MathNet.Numerics.LinearAlgebra.Double namespace, MathNet.Numerics.LinearAlgebra is enough when using the CreateVector static class to create new vectors, and AsArray to get back to the raw array if needed.

Upvotes: 2

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