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diff --git a/1358/CH3/EX3.12/Example312.sce b/1358/CH3/EX3.12/Example312.sce
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+// Display mode
+mode(0);
+// Display warning for floating point exception
+ieee(1);
+clear;
+clc;
+disp("Turbomachinery Design and Theory,Rama S. R. Gorla and Aijaz A. Khan, Chapter 3, Example 12")
+disp("Mean diameter D")
+D = (4+1.75)/2
+N =145;
+U1 = %pi*D*N/60
+g = 9.81;
+H = 20;
+disp("Using hydraulic efficiency, etah")
+etah = 0.93
+Cw1 = etah*g*H/U1
+Power = 12000*0.746
+disp("Power = rho*g*Q*H*etao")
+etao = 0.85
+disp("Discharge, Q")
+Q = Power/(g*H*etao)
+Cr1 = Q*4/(%pi*(4^2-1.75^2))
+beta1 = atan(Cr1/(U1-Cw1))*180/%pi
+U2 =U1
+Cr2 = Cr1
+beta2 = atan(Cr2/U2)*180/%pi