Call MATLAB Function from C# Client

This example shows how to call a user-defined MATLAB® function, myfunc, from a C# application.

Create a MATLAB function, myfunc, in the folder c:\temp\example.

function [x,y] = myfunc(a,b,c) 
x = a + b; 
y = sprintf('Hello %s',c);

Create the C# application.

using System; 
using System.Collections.Generic; 
using System.Text; 

namespace ConsoleApplication2 
{ 
    class Program 
    { 
        static void Main(string[] args) 
        { 
            // Create the MATLAB instance 
            MLApp.MLApp matlab = new MLApp.MLApp(); 

            // Change to the directory where the function is located 
            matlab.Execute(@"cd c:\temp\example"); 

            // Define the output 
            object result = null; 

            // Call the MATLAB function myfunc
            matlab.Feval("myfunc", 2, out result, 3.14, 42.0, "world"); 
             
            // Display result 
            object[] res = result as object[]; 
             
            Console.WriteLine(res[0]); 
            Console.WriteLine(res[1]); 
            Console.ReadLine(); 
        } 
    } 
}

In Microsoft® Visual Studio®, add a reference to your C# project to the MATLAB COM object. From the Project menu, select Add Reference.

Select the COM tab in the Add Reference dialog box.

Select the MATLAB application.

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