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+clear
+//
+//Initialisation
+v1=5 //constant 5V
+r=10 //resistance in Ohm
+vrms=5 //sine wave of 5 V r.m.s
+vp=5 //5 V peak
+
+//Calculation
+p=(v1**2)*r**-1 //Power in watts
+p2=(vrms**2)*r**-1 //Power average in watts
+a=(vp*sqrt(2)**-1)**2
+p3=a*r**-1 //Power average in watts
+
+//Result
+printf("\n (1) P = %.1f W\n",p)
+
+printf("\n (2) Pav = %.1f W\n",p2)
+
+printf("\n (3) Pav = %.2f W\n",p3)
+