Run your program for the sequence of steps N = 2, 4, 8, 16. Write the Matlab routine which computes the root-mean-square (RMS) error for each case as: r_N = e_N/Squareroot (u^ex_1)^2 + (u^ex_2) + middot middot middot + (u^ex_N)^2 + (u^ex_N)^2/N And the relative error as r_N = e_N/Squareroot (u^ex_1)^2 + (u^ex_2) + middot middot middot + (u^ex_N)^2 + (u^ex_N)^2/N Analyze the behavior of the relative error as function of h/L = 1/N. The best way to do it is to make a ln-ln plot. The error typically behaves according to the power law: r_N = C (h/L)^m rightarrow lnr_N = lnC – m ln (L/h) = ln C – m ln N Both the pre-exponential C and the power m are easily found from ln-ln plot which should be close to a straight line (except for very large h). Discuss your findings. Run for sequence of 5 spring constant K (all other parameters remain the same. If the spring constant from part (1) is k_0 then the sequence of spring constant is k_0/100, k_0/10, 10k_0, 100k_0. Discuss your result, and conclude relationship between K and results.
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