public Vector <double> MklProvider()
{
var z = _b;
for (int i = 0; i < _rounds; i++)
{
var aa = ((DenseVectorStorage <double>)_a.Storage).Data;
var az = ((DenseVectorStorage <double>)z.Storage).Data;
var ar = new Double[aa.Length];
_mkl.AddArrays(aa, az, ar);
z = Vector <double> .Build.Dense(ar);
}
return(z);
}