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+// A Texbook on POWER SYSTEM ENGINEERING
+// A.Chakrabarti, M.L.Soni, P.V.Gupta, U.S.Bhatnagar
+// DHANPAT RAI & Co.
+// SECOND EDITION 
+
+// PART IV : UTILIZATION AND TRACTION
+// CHAPTER 1: INDUSTRIAL APPLICATIONS OF ELECTRIC MOTORS
+
+// EXAMPLE : 1.26 :
+// Page number 707-708
+clear ; clc ; close ; // Clear the work space and console
+
+// Given data
+hp_1 = 100.0       // Motor load(hp)
+t_1 = 10.0         // Time of operation(min)
+hp_2 = 0           // Motor load(hp)
+t_2 = 5.0          // Time of operation(min)
+hp_3 = 60.0        // Motor load(hp)
+t_3 = 8.0          // Time of operation(min)
+hp_4 = 0           // Motor load(hp)
+t_4 = 4.0          // Time of operation(min)
+
+// Calculations
+t_total = t_1+t_2+t_3+t_4                                               // Total time of operation(min)
+rms = ((hp_1**2*t_1+hp_2**2*t_2+hp_3**2*t_3+hp_4**2*t_4)/t_total)**0.5  // rms horsepower
+
+// Results
+disp("PART IV - EXAMPLE : 1.26 : SOLUTION :-")
+printf("\nRequired size of continuously rated motor = %.f H.P\n", rms)
+printf("\nNOTE: ERROR: Calculation mistake in the textbook")
+printf("\n      Actual value is written here instead of standard values")