Cody

Problem 44934. Plot Damped Sinusoid

Solution 2071215

Submitted on 28 Dec 2019
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Test Suite

Test Status Code Input and Output
1   Fail
clf; t = linspace(0,15,400); y = exp(-0.5*t).*cos(2*pi.*t); m = plot_cos(y, t); assert(abs(m - (-0.781239288889930)) <= 1e-4) h = findobj(gcf, 'Type', 'Line'); if length(h) == 2 assert(isequal([h.Color], [1 0 0 0 0 1]), 'Check plot colors') assert(strcmp([h.LineStyle], 'none--'), 'Check the line style') assert(strcmp([h.Marker],'*none'), 'Check marker type') assert(isequal([h.YData],[m, y]), 'Check plotted data') elseif length(h) == 1 assert(isequal([h.Color], [0 0 1]),'Check plot colors') assert(strcmp([h.LineStyle], '--'), 'Check the line style') assert(strcmp([h.Marker],'*'),'Check marker type') assert(isequal([h.YData],y),'Check plotted data' ) assert(isequal([h.MarkerEdgeColor], [1 0 0]),'Check plot colors') assert(isequal([h.MarkerIndices], 14),'Check marker location') elseif length(h)>2 error('There may be too many plots on the figure.') else error('No plot found.') end

No plot found.
2   Fail
clf; t = linspace(2,5,100); y = exp(-0.5*t).*cos(2*pi.*t); m = plot_cos(y, t); assert(abs(m - (-0.287376348726584)) <= 1e-4) h = findobj(gcf, 'Type', 'Line'); if length(h) == 2 assert(isequal([h.Color], [1 0 0 0 0 1]), 'Check plot colors') assert(strcmp([h.LineStyle], 'none--'), 'Check the line style') assert(strcmp([h.Marker],'*none'), 'Check marker type') assert(isequal([h.YData],[m, y]), 'Check plotted data') elseif length(h) == 1 assert(isequal([h.Color], [0 0 1]),'Check plot colors') assert(strcmp([h.LineStyle], '--'), 'Check the line style') assert(strcmp([h.Marker],'*'),'Check marker type') assert(isequal([h.YData],y),'Check plotted data' ) assert(isequal([h.MarkerEdgeColor], [1 0 0]),'Check plot colors') assert(isequal([h.MarkerIndices],17 ),'Check marker location') elseif length(h)>2 error('There may be too many plots on the figure.') else error('No plot found.') end

No plot found.

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