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+//find euler's crippling load
+clc
+//solution
+//given
+//ref fig 16.3
+D=400//mm
+B=200//mm
+t=10//mm
+b=200-10//mm
+d=400-20
+l=6000//mm
+E=200*1000//N/mm^2
+Ixx=B*D^3/12-b*d^3/12//mm^4
+Iyy=2*[t*B^3/12]+(d*t^3/12)//mm^4
+//since Iyy <Ixx,therefore it will try to b uckle about Y axis
+L=l/2
+I=Iyy
+Wcr=%pi^2*E*I/L^2//N
+printf("the cripling load acting is,%f N",Wcr)
+\ No newline at end of file