If you have data from an external source (CSV, Excel, text), use:
figure; surf(data); shading interp; % Smooths the colors colorbar; title('3D Surface Plot of Xnxn Matrix'); xlabel('Columns'); ylabel('Rows'); zlabel('Values'); xnxn matrix matlab plot pdf download free
exportgraphics(gca, 'MatrixPlot.pdf', 'ContentType', 'vector'); Use code with caution. Copied to clipboard If you have data from an external source