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- #include <stdio.h>
- #include <stdlib.h>
- #include <math.h>
- double f(double x)
- {
- return sin(x);
- }
- int main()
- {
- int N;
- printf("Specify N: ");
- scanf("%i",&N);
- double h;
- h = M_PI/N;
- double sum = 0;
- double x;
- x=h;
- for(int i=0;i<=N;i++)
- {
- if (i==0)
- {
- sum+=7*f(0);
- }
- if (i==N)
- {
- sum+=7*f(M_PI);
- }
- if (i==2 || i==(N-2))
- {
- sum+=12*f(x);
- x+=h;
- }
- if (i==1 || i==3 || i==(N-1) || i==(N-3))
- {
- sum+=32*f(x);
- x+=h;
- }
- if (i>=4 && i<=(N-4))
- {
- sum+=14*f(x);
- x+=h;
- }
- }
- double result = ((2*h)/45)*sum;
- printf("The Boole rule method result for %i is %.10lf",N,result);
- return 0;
- }
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