?? extended_simpson.cpp
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#include "vs.h"
int main() {
const int N = 11;
double c[N] = {1.0/3.0, 4.0/3.0, 2.0/3.0, 4.0/3.0, 2.0/3.0, 4.0/3.0,
2.0/3.0, 4.0/3.0, 2.0/3.0, 4.0/3.0, 1.0/3.0},
X[2] = {1.0, 2.0},
h = (X[1]-X[0])/N;
Quadrature qp(c, X[0], X[1], N);
H0 x(qp);
C0 area = (x.pow(2)-2*x+1) | J(h);
cout << area << endl;
return 0;
}
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