### C C++ CODE: Lagrange's interpolation

Working C C++  Source code program for Lagrange's interpolation
``````/********** Lagrange's interpolation ***************/

#include<iostream.h>
#include<conio.h>
int main()
{
int n,i,j;
float mult,sum=0,x[10],f[10],a;
clrscr();``````

### C C++ CODE for Newton's interpolation

Working C C++  Source code program for Newton's interpolation
``````/***************** Newtons interpolation **************/
#include<iostream.h>
#include<conio.h>
int main()
{
int n,i,j;
float x[10],f[10],a,sum=0,mult;
clrscr();``````

### C C++ CODE: Cubic Spline Interpolation

Working C C++  Source code program for Cubic Spline Interpolation
``````/********************* Cubic Spline Interpolation **********************/
#include<iostream.h>
#include<conio.h>
#include<math.h>
int main()
{
char choice='y';
int n,i,j,k;``````

### C C++ code : horner's synthetic division

Working C C++  Source code program for horner's synthetic division method for finding solution of polynomial equation.
``````//horner's polynomial soln, synthetic division
#include <iostream.h>
#include <conio.h>
#include <complex.h>
void main()
{
int it,n;
complex a[10],b[10],c[10],x;
clrscr();
cout<<"Enter the degree of the polynomial:";
cin>>n;``````

### C C++ code : Newton - Horner's method for solution of polynomial equation

Newton - Horner's method for finding solution of polynomial equation
``````/***************** Newton horner's method ******************/
#include<iostream.h>
#include<conio.h>
#include<complex.h>
#include<math.h>
int main()
{
complex a[20],b[20],c[20];
complex x;
int n,i;
clrscr();
``````

### C C++ code- numerical differentiation of given equation

Working C C++  Source code program  for two point - three point numerical differentiation of given equation
``````/*****************  NUMERICAL DIFFERENTION *********************/
#include<iostream.h>
#include<conio.h>
#include<math.h>
float funct(float a);
int main()
{
char choice='y';``````

### C C++ code : Bisection method for solving non-linear equation

Working C C++  Source code program : Bisection method for solving non-linear equation
``````#include<iostream.h>
#include<conio.h>
#include<math.h>
float funct(float);

int main()
{``````

### C C++ Code : Newton rapshon's method for solving non-linear equation

Working C C++  Source code program for newton rapshon's method for solving non-linear equations.
``````/*Newton Rapsons method : for solving non linear equations*/
#include<iostream.h>
#include<conio.h>
#include<math.h>

double funct(double);
double derv(double);
``````