Science, Numerical Analysis, Ritz.
(recall that φᵢ(x)=0.5xⁱ ) Equation 31: Approximate solution of 2nd degree For an approximate solution of degree n=3 we’ll have Equation 32: The entries to stiffness matrix and force vector are computed using Equations 27 and 28 Which will result in c₁= 3.166, c₂= -0.498 and c₃= -0.001, giving the