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+
+// Variable Declaration
+v = 220.0 //Voltage(kV)
+f = 50.0 //Frequency(Hertz)
+p = 752.0 //Pressure(mm of Hg)
+t = 40.0 //Temperature(°C)
+m = 0.92 //Surface irregularity factor
+r = 1.2 //Conductor radius(cm)
+d = 550.0 //Spacing(cm)
+
+// Calculation Section
+delta = (0.392*p)/(273+t) //Air density correction factor
+V_c = 21.1*delta*m*r*log(d/r) //Corona inception voltage(kv/phase)rms
+V_c_l = 3**0.5*V_c //Line-line corona inception voltage(kV)
+
+// Result Section
+printf('Corona inception voltage , V_c = %.2f kV/phase' ,V_c)
+printf('Line-to-line corona inception voltage = %.2f kV' ,V_c_l)