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diff --git a/1319/CH1/EX1.18/1_18.sce b/1319/CH1/EX1.18/1_18.sce
new file mode 100644
index 000000000..da9005f1f
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+++ b/1319/CH1/EX1.18/1_18.sce
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+//Expression for the sum of energy stored by inductor and capacitor connected in parallel at resonance
+
+clc;
+clear;
+
+printf('v = Vm * cos(w0*t)\n')
+printf('The energy stored by the capacitor = C*(Vm^2)*(cos(w0*t)^2)\n')
+printf('The energy stored by the inductor = L*(i^2)/2\n\n')
+printf('v   = L *(di/dt)\n di = v*dt/L\n (i^2) = [integration of (v/L) wrt dt from 0 to t]^2 \n')
+printf('    = (Vm^2)/(L^2) * (sin(w0*t)^2)/(w0^2) = (Vm/L)^2 * (sin(w0*t)^2) * LC\n')
+printf('    = (Vm^2)*C*(sin(w0*t)^2)/L \n\n')
+printf(' Energy = L*(i^2)/2 = (Vm^2)*C*(sin(w0*t)^2)*L/(L*2)\n')
+printf('        = C/2 * (Vm^2)*(sin(w0*t)^2)\n\n')
+printf(' Therefore total energy = C*(Vm^2)/2 = C*(V^2)\n')