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hw10_derek_rampal - Derek Rampal HW 10 18a Main script xpts...

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Derek Rampal 10/05/2008 HW 10 18a. % % Main script % xpts = zeros(5,1); xpts = [0;3;5;8;13]; ypts = zeros(7,1); ypts = [75;0;225;383;623;993;72]; S=cubic_spline_get_coeffs(xpts,ypts); xeval = zeros(1,1); xeval = [10]; y = cubic_spline_evaluate (xeval,S,xpts); y Output: y = 774.8384 18b c and d. I wasnt thinking and i rewrote code without having to .... Code: % % Derek Rampal HW 10 % Main script % format long ; xpts = zeros(5,1); xpts = [0;3;5;8;13]; xlen = length(xpts); ypts = zeros(7,1); ypts = [75;0;225;383;623;993;72]; xeval = zeros(1,1); xeval = [10]; S = cubic_spline_get_coeffs(xpts,ypts); Sp = splined(S); Spp = splined(Sp); tolerance = 1e-5; [ap1,bp1] = brutes(Sp, xpts, 1, tolerance, 3,55*5280/3600); [ap2,bp2] = brutes(Sp, xpts, 2, tolerance, 3,55*5280/3600); [ap3,bp3] = brutes(Sp, xpts, 3, tolerance, 3,55*5280/3600); [ap4,bp4] = brutes(Sp, xpts, 4, tolerance, 3,55*5280/3600); ap1
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bp1 ap2 bp2 ap3 bp3 ap4 bp4 [app1,bpp1] = brutes(Spp, xpts, 1, tolerance, 3,0); [app2,bpp2] = brutes(Spp, xpts, 2, tolerance, 3,0); [app3,bpp3] = brutes(Spp, xpts, 3, tolerance, 3,0); [app4,bpp4] = brutes(Spp, xpts, 4, tolerance, 3,0); app1 bpp1 app2 bpp2 app3 bpp3 app4 bpp4 y = cubic_spline_evaluate ((app3+bpp3)/2,Sp,xpts); (ap3(1,1)+bp3(1,1))/2 (ap3(1,2)+bp3(1,2))/2 (app3+bpp3)/2 y function Sprime=splined(S) % %
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