F# Interactive not calling properly

[hasanOryx]

Attached print sceen of the way I linked my interactive .fsx file to Math.Net there is a red line that shows an error in calling open MathNet.Numerics.LinearAlgebra

Moreover, while calling functions in the open MathNet.Numerics.Statistics as below I got another error as shown under the code:

let sX = ArrayStatistics.StandardDeviation x
let sY = ArrayStatistics.StandardDeviation y

The type 'Object' is required here and is unavailable. You must add a reference to assembly 'netstandard, Version=2.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'.

[cdrnet]

It sounds a bit like a framework/runtime mismatch.

• What runtime are you using F# interactive in? .Net (Framework) CLR or .Net Core CLR? I assume this is Ionide?
• What builds of the Math.NET Numerics libraries do you use? Our packages contain separate builds, e.g. for net45 or netstandard2.0. Or where did you get the assemblies from (zip archive, unpacking nupkg, built yourself, ...)?

It is possible that the provided MathNet.Numerics.fsx doesn't work properly in this kind of setup (i.e. without using NuGet or Paket) - you may want to copy over locally what you need.