/// <summary>
/// Returns a compiled expression
/// Allows to boost substitution a lot
/// </summary>
/// <param name="func"></param>
/// <param name="variables">
/// Must be equal to func's variables (ignoring constants)
/// </param>
/// <returns></returns>
internal static FastExpression Compile(Entity func, params VariableEntity[] variables)
{
var strings = new List <string>();
foreach (var varEnt in variables)
{
if (!MathS.IsConstant(varEnt))
{
strings.Add(varEnt.Name);
}
}
return(Compile(func, strings.ToArray()));
}