Algoritma dan Pemrograman: Implementasi Metode Trapesium
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Implementasi metode trapesium menggunakan pemrograman java :
/** * * @author ABD. CHARIS FAUZAN */ public class IntegrasiTrapesium { public static void main(String[] args) { double a = 0; double b = 0.8; double n = 10; double h = (b - a) / n; double x = a; double I = F(a)+F(b); double exact_Value = 1.640533; double sigma =0; for(int i=1;i < n;i++){ x+=h; sigma+=2*F(x); } I=(I+sigma)*h/2; System.out.println("I = "+I); double Et = Math.abs((I-exact_Value)/exact_Value)*100; System.out.println("Et = "+Et+"%"); } private static double F(double x) { return 0.2 + 25 * x - (200 * Math.pow(x, 2)) + (675 * Math.pow(x, 3)) - (900 * Math.pow(x, 4)) + (400 * Math.pow(x, 5)); } }
Output yang dihasilkan adalah :
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