public static NDview <Type> operator /(NDarray <Type> a, double b) => ND.Div <Type>(a, b);
public static NDview <Type> operator /(NDview <Type> a, NDarray <Type> b) => ND.Div(a, b.View);
public static NDview <Type> operator /(double a, NDarray <Type> b) => ND.Div <Type>(a, b);
public static NDview <Type> operator /(NDview <Type> a, NDview <Type> b) => ND.Div(a, b);