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+// Example 12_8
+clc;funcprot(0);
+// Given data
+theta=10;// The half angle of two dimensional wedge in degree
+beta=20;// The attached shock wave angle in degree
+r=1.4;// The specific heat ratio
+
+// Calculation
+M=sqrt(((2*tand(theta))+(2*cotd(beta)))/((2*cosd(beta)*sind(beta))-((r+(cosd(beta)*cosd(beta)))*tand(theta))));// The Mach number M of the flow in the wind tunnel
+printf("The Mach number M of the flow in the wind tunnel,M=%1.3f",M);