initial commit / add all books

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diff --git a/1085/CH11/EX11.1/ex11_1.sce b/1085/CH11/EX11.1/ex11_1.sce
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+//Exam:11.1

+clc;

+clear;

+close;

+h_1=1;

+k_1=1;

+l_1=1;

+//Miller indices of slip plane

+h_2=1;

+k_2=-1;

+l_2=1;

+//Miller indices of stress plane

+h_3=1;

+k_3=1;

+l_3=0;

+//Miller indices of slip direction

+A=(h_1*h_2+k_1*k_2+l_1*l_2)/(((h_1^2+k_1^2+l_1^2)^(1/2))*((h_2^2+k_2^2+l_2^2)^(1/2)));//Value of cos(x) where x =angle between slip plane and stress plane

+B=(h_1*h_3+k_1*k_3+l_1*l_3)/(((h_1^2+k_1^2+l_1^2)^(1/2))*((h_3^2+k_3^2+l_3^2)^(1/2)));//Value of cos(y) where y =angle between slip direction and stress direction

+C=(1-A^2)^(1/2);//Value of sin(x)

+stress=3.5;//Applied Stress in Mpa

+T_cr=stress*A*B*C;//Critical resolved shear stress(in MPa)

+disp(T_cr,'Critical resolved shear stress(in MPa)=');
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