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+//Chapter 4: Radiation
+//Example 4-5.1
+clc;
+
+//Variable Initialization
+dl = 1e-2       //Length of radiating element (m)
+I_eff = 0.5     //Effective current (A)
+f = 3e9         //Frequency (Hz)
+c = 3e8         //Velocity of light (m/s)
+
+//Calculation
+w = 2*%pi*f     //Angular Frequency (rad/s)
+P = 20*(w**2)*(I_eff**2)*(dl**2)/(c**2)     //Radiated power (W)
+
+//Result
+mprintf("The radiated power is %.2f W", P)
+
+//The answer obtained is varying compared with the textbook answer because of a calculation error