29 lines
533 B
C++
29 lines
533 B
C++
#include <iostream>
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#include <iomanip>
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#include <cmath>
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#include "nr.h"
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using namespace std;
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int main(void) // Program fredex
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{
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const int N=40;
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const DP PI=3.141592653589793238;
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int j;
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DP d,x;
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Vec_INT indx(N);
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Vec_DP g(N);
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Mat_DP a(N,N);
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NR::quadmx(a);
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NR::ludcmp(a,indx,d);
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for (j=0;j<N;j++)
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g[j]=sin(j*PI/(N-1));
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NR::lubksb(a,indx,g);
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for (j=0;j<N;j++) {
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x=j*PI/(N-1);
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cout << fixed << setprecision(2) << setw(6) << (j+1);
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cout << setprecision(6) << setw(13) << x << setw(13) << g[j] << endl;
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}
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return 0;
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}
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