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- function [s]=prostokat(a,b,f)
- s=0;
- st=0;
- n=5;
- xd = (b-a)/n;
- X=[a:xd:b];
- for i = a:length(X)-1;
- x1=a+i*xd;
- st=st+f(x1-xd/2);
- if(i<n)
- s=s+f(x1);
- end
- end
- s=(xd/6)*(f(a)+f(b)+2*s+4*st);
- return;
- end
- % function [s]=prostokat(a,b,f)
- % s=0;
- % n=1000;
- % xd = (b-a)/n;
- % X=[a:xd:b];
- % for i = a:length(X)-1;
- % s=s+f(a+i*xd);
- %
- % end
- % s=(s+(f(a)+f(b))/2)*xd;
- % return;
- % end
- % function s=prostokat(a,b,f)
- % s =0;
- % n=10000;
- % xd = (b-a)/n;
- % i=1;
- % while(i < n)
- % s=s+f(a+i*xd);
- % i=i+1;
- % end
- % s=(s+(f(a)+f(b))/2)*xd;
- % return;
- % end
- % function s=prostokat(a,b,f)
- % s =0;
- % n=10000;
- % xd = (b-a)/n;
- % i=1;
- % while(i <= n)
- % s=s+f(a+i*xd);
- % i=i+1;
- % end
- % s=s*xd;
- % return;
- % end
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