Science, Numerical Analysis, Ritz.
solution of degree n=2 we will have two Ritz coefficients i.e. c₁, c₂ as unknowns for which we need to solve Equation 22. Consequently our stiffness matrix in Equation 22 will be a 2 by 2 matrix. Equation 29: 2 by 2 matrix for an approximate solution of 2nd degree Using Equation 27 and 28 one finds