Write a program on WPF

Hello, there. Programmer services are required. You need to write a program on WPF Numerical Integration. The integral must be introduced first, i.e. The function in the integral, the upper limit b and the lower limit a are entered in TextBox. It is also necessary to introduce the integration interval n, i.e. How many parts do you have to divide? Then we find Dx. Then in ComboBox you need to choose the method: the method of middle rectangles, the method of left rectangles, the method of right rectangles, the Simpson method and the Gauss quadrature formula. Then the table of the integral solution should be displayed depending on the selected method, and the answer should be output. There are also tables and programs in c#. You also need to schedule.