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+//CHAPTER 2- STEADY-STATE ANALYSIS OF SINGLE-PHASE A.C. CIRCUIT
+//Example 4
+
+disp("CHAPTER 2");
+disp("EXAMPLE 4");
+
+//VARIABLE INITIALIZATION
+v_m=10;                        //peak value of voltage in Volts
+angle=60*(%pi/180);            //delay angle in radians
+
+//SOLUTION
+//average value Vav by integrating v over 0 to pi  and dividing by pi
+v_av=(integrate('v_m*sin(x)','x',angle,%pi))/(%pi);
+//effective value
+v_rms=(integrate('(v_m*sin(x))^2','x',angle,%pi))/(%pi);
+v_rms=sqrt(v_rms);
+disp(sprintf("Average value of full wave rectifier sine wave is %4.2f V",v_av));// truncade to two decimals
+//                                                                              //text book answer is 4.78
+disp(sprintf("Effective value of full wave rectifier sine wave is %4.2f V",v_rms));//text book answer is 6.33
+
+//END