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+//Chapter 4: Selection of Motor Power Rating
+//Example 6
+clc;
+
+//Variable Initialization
+I=500       //Eated Armature Current in A
+Ra=0.01     //Armature Resistance in ohm
+P=1000      //Core Loss in W
+B=0.5       
+
+//Duty Cycles
+tst=10       //Given Interval for accelaration at twice the rated current
+tr=10        //Given Interval for running at full load 
+tb=10        //Given Interval for deceleration at twice the rated armature current
+
+//Solution
+
+Es=tst*(2*I)**2*Ra+P
+Eb=Es
+p1s_tr=(I**2*Ra+P)*tr
+p1r=I**2*Ra+P
+gamma=(1+B)/2
+x=(Es+p1s_tr+Eb)/p1r
+y=gamma*tst+tr+gamma*tb
+ts=(x-y)/B               //Idling interval
+
+fmax=3600/(tst+tr+tb+ts) //Maximum Frequency of drive operation   
+
+mprintf("\nMaximum Frequency of drive operation = %.2f per hour",fmax)
+//The answer provided in the textbook is wrong