langrange Method, For Numerical analysis. working matlab code. numeric analysis Langrane method. MATLAB provides tools to solve math. Using linear programing techniques we can easily solve system of equations. This file provides a running code of Langrange Method

1. function[p]=langrange(x,xint,y)
x=[1 2 5];
y=[1 4 10];
xint=3;
n=size(x,2)
L=ones(n,size(xint,2));
if (size(x,2)~=size(y,2));
fprint('error x and y have same values')
else
for i=1:n
for j=1:n
if(i~=j)
L(i,:)=L(i,:)*(xint-x(j))/(x(i)-x(j));
end
end
end
p=0;
for i=1:n
p=p+y(i)*(L(i,:));
end
end
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Taimoor Gondal
Asim Zahid
Umar Cheema