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//finding forces in members of truss
//Refer fig. 4.8
//Step 1
theta=atand(3/3) //Degree
//Step 2
//Assume Notations as in fig. 4.8
//Step 3
//applying equilibrium conditions
FCB=40/sind(45) //kN
FCD=FCB*cosd(45) //kN
//Step 4
//Mark and analyse at joint C
//Step 5
//Analyse joint D
FDB=40 //kN
FDE=40 //kN
//step 6
//Analysis of joint B
FBE=(40+56.57*sind(45))/sind(45) //kN
FBA=FBE*cosd(45)+56.57*cosd(45) //kN
//step 7
//Tabulating answers
printf("The required forces in members are:-\nAB=%.2f kN (Tension)\nBC=%.2f kN (Tension)\nCD=%.2f kN (Compression)\nDE=%.2f kN (Compression)\nBE=%.2f kN (Compression)\nBD=%.2f kN (Tension)",FBA,FCB,FCD,FDE,FBE,FDB)
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