Cody

Solution 155763

Submitted on 30 Oct 2012 by Christopher
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Test Suite

Test Status Code Input and Output
1   Pass
%% Check linear interpolation X = [4800; 5100]; Y = [7.5247; 7.2851]*1e-1; x = 5000; y = Poly_Interp(X,Y,x) y_correct = 0.73650; assert(abs(y-y_correct)<1e-4)
y = 0.7365
2   Pass
%% Check Vandermonde coefficient matrix condition number X = [4800; 5100]; Y = [7.5247; 7.2851]; x = 5000; y_correct = 7.3650; c_correct = 1.6350e+05; [y,c] = Poly_Interp(X,Y,x) assert(abs(y-y_correct)<1e-4) assert(norm(c-c_correct)<1e2)
y = 7.3650 c = 1.6350e+05
3   Pass
%% Check quadratic interpolation X = [300, 400, 500]; Y = [0.616, 0.525, 0.457]; x = 350; [y,c] = Poly_Interp(X,Y,x) y_correct = 0.567625; c_correct = [5.8932e+06]; assert(abs(y-y_correct)<1e-4) assert(norm(c-c_correct)<1e2)
y = 0.5676 c = 5.8932e+06
4   Pass
%% Check quadratic interpolation for log X = [1, 4 6]; Y = log(X); x = 2; [y,c] = Poly_Interp(X,Y,x) y_correct = 0.5658; c_correct = 93.9107; assert(abs(y-y_correct)<1e-4) assert(norm(c-c_correct)<1e-2)
y = 0.5658 c = 93.9107