Does any of this make sense?
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#include <math.h>
#include <vector>
#include <string>
#include <iostream.h>
using namespace std;
int main(){
//define vectors
vector<double> fofx_values;
vector<double> fofy_values;
vector<double> g_values;
vector<double> g_primed_values;
vector<double> t_values;
vector<double> x_values;
vector<double> y_values;
//define stepsize
double newton_raphson_error;
double N=10.0;
int n=7.0;
int i, j;
double h=N/n;
//define vector size
fofx_values.reserve(n+1);
fofy_values.reserve(n+1);
g_values.resize(j+1);
g_primed_values.resize(j+1);
t_values.reserve(n+1);
x_values.resize(j+1);
y_values.reserve(n+1);
//initialise vectors
fofy_values[0]=0;
fofx_values[0]=0;
g_values[0]=0;
g_primed_values[0]=0;
t_values[0]=0;
x_values[0]=0;
y_values[0]=1;
//begin computation
for (i=0;i<n;i++){
t_values[i]=(i)*h;
fofy_values[i]=((-8.0*t_values[i])/(1+(t_values[i]*t_values[i])))*y_values[i];
for (j=0; (newton_raphson_error)<0.001;j++){
fofx_values[j]=((-8.0*t_values[i+1])/(1+(t_values[i+1]*t_values[i+1])))*x_values[j];
g_values[j]=(0.5*h*(fofy_values[i]+fofx_values[j]))+y_values[i]-x_values[j];
g_primed_values[j]=(0.5*h*((-8.0*t_values[i+1])/(1+(t_values[i+1]*t_values[i+1]))))-1;
x_values[j+1]=x_values[j]-(g_values[j]/g_primed_values[j]);
newton_raphson_error=fabs(x_values[j+1]-x_values[j]);
}
}
cout << fofy_values[i] << endl;
return 0;
}
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yes
Looks like someone likes redundant parentheses.
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