Midpoint Method is numerical method to solve the first order ordinary differential equation with given initial condition. The midpoint method is also known as 2nd order Runge-Kutta method, which improve the Euler method by adding midpoint in step which is given better accuracy by order one. The Midpoint method is converge faster than Euler method. The local error of Midpoint method is O(h3)
At here, we write the code of Midpoint Method in MATLAB step by step. MATLAB is easy way to solve complicated problems that are not solve by hand or impossible to solve at page. MATLAB is develop for mathematics, therefore MATLAB is the abbreviation of MATrix LABoratory.
The formula of Modified Euler method is
At here, we solve the differential equation by using Euler method with the help of MATLAB.
% Midpoint method to solve the ordinary differential equation
% Midpoint method fall in the category of Runge-Kutta method of order 2
clear all;
close all;
clc;
f=inline('y-t^2+1');
x0=input('Enter x0=');
y0=input('Enter y0=');
xn=input('Enter upper limit of interval xn=');
h=input('Enter width (equal space) h=');
n=(xn-x0)/h;
fprintf('--------------------------------------------\n')
fprintf(' x y ynew\n');
fprintf('--------------------------------------------\n')
for i=1:n
y1=y0+h*f(x0+h/2,y0+h*f(x0,y0)/2);
fprintf('%f %f %f \n',x0,y0,y1)
y0=y1;
x0=x0+h;
end
Other Numerical Methods with MATLAB Coding
- Bisection Method with MATLAB
- Newton Raphson Method with MATLAB
- Secant Method with MATLAB
- Regula Falsi Method with MATLAB
- Fixed Point Iteration with MATLAB
- Trapezoidal Rule with MATLAB
- Simpson 1/3 Rule with MATLAB
- Simpson 3/8 Rule with MATLAB
- Bool’s Rule with MATLAB
- Weddle’s Rule with MATLAB
- Euler Method with MATLAB
- Modified Euler Method with MATLAB
- Midpoint Method with MATLAB
- Runge-Kutta Method with MATLAB
- Millen’s Method with MATLAB
- Adams Bashforth Moulton Method with MATLAB
- Newton Forward Difference Interpolation with MATLAB
- Newton Backward Difference Interpolation with MATLAB
- Lagrange Interpolation with MATLAB
- Newton Divided Difference Interpolation with MATLAB
- Hermite Interpolation with MATLAB
- Natural Cubic Spline Interpolation with MATLAB
- Gauss Jacobi Method with MATLAB
- Gauss Seidal Method with MATLAB
- Power Method with MATLAB