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diff --git a/2015/CH6/EX6.1/6_1.sce b/2015/CH6/EX6.1/6_1.sce
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+clc
+//initialisation of variables
+c=400 //steam speed in m/s
+alpla=12 //angle in degrees
+cwo=0
+pi=(22/7)
+//CALCULATIONS
+u=c*cos(12*(pi/180))/2
+cwi=c*cos(12*(pi/180))
+cfi=c*sin(12*(180/pi))
+thetha=atan(cfi/(cwi-u))*(pi/180)
+cro=sqrt((cfi)^2+(cwi-u)^2)
+phi=acos(u/cro)*(180/pi)
+wo=(cwi-cwo)*u
+ke=(c)^2/2
+eff=wo/ke
+//RESULTS
+printf('blade efficiency is %2f',eff)