矩阵变元素，变列向量

W1(Z1 < Z2) = nan; % Z1,Z2 all matrix,Only plot points where Z1 > Z2;Z1 < Z2位置值填为NaN

x = x(:); % Now x is a 30-by-1 vector; matrix变列vector技巧

3D表面图

hand = figure; % Handle to the figure, for more plotting later
set(gcf,'Color','w') % White background
surf(X,Y,W1,'LineStyle','none'); %surf:3-D three-dimensional surface plot, which is a three-dimensional surface that has solid edge colors and solid face colors.
hold on
surf(X,Y,W2,'LineStyle','none');
view(-44,18) %方位角 仰角

table行列设置

tbl = table([output.iterations;output2.iterations],[output.funcCount;output2.funcCount],...
    'RowNames',{'With Derivatives','Without Derivatives'},'VariableNames',{'Iterations','Fevals'})