Each of the following problems involve two$-$dimensional trusses to be modeled using the bar ele ment $($in some analy sis software this may be called a bar, link, spar, or truss element$).$ In each problem, determine:

the magnitude and location of the maximum deflection,

the stress in each member,

and the reaction forces.

Use the computed reaction forces to check the equilibrium.

Note: Node numbers, where included, are for reference only and can be changed at t he analyst's discretion.

Problem $1$:

E$3.1$ Each member is steel having $E-30({10}^6)$ and the cross$-$sectional area is $1\mathrm{.}2in.{?}^2[$

make sure matlab code run corect abd give me all matrixes and equations$]$