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+//Harmonic and Powerfactor with the Converter system//
+//Example 8.8//
+Wv=18.6;
+h=6;
+C=sqrt(h^2-(Wv^2*((h^2-1)^2)/2*10^4))*10^6/sqrt(h^2-1);//cosine of triggering angle//
+C=sqrt(14.68/35);
+printf('cosine of triggering angle=C=%f',C);
+A=acos(C)*180/%pi;
+printf('\ntriggering angle of the device=A=%fdegrees',A);//endof program//