Printing equations stored in a cell to plot titles?

Hello,

Currently i have multiple equations stored a cell array and would like to print them as the titles to various plots. Since I am calling the cells in a loop I would like to do soemthing like this but I dont think sprintf is the correct way to apprach it.

q_array = {@(x)ones(size(x)); @(x) abs(x); @(x) x.^2; @(x) (1/3)+(2/3)*x.^2};
for k =1:4
    %Code that generates the plot for each loop 
    formatspec = 'Exact vs Scheme Plots for q({\nu}) = %s';
    sgtitle(sprintf(formatspec, q_array{k}));
end

Thank you

Answer 1

[Ameer Hamza]

Although you can use func2str() to convert the function handle to char array

sgtitle(sprintf(formatspec, func2str(q_array{k})));

but a more flexible solution is to create a seperate array for titles

q_array = {@(x)ones(size(x)); @(x) abs(x); @(x) x.^2; @(x) (1/3)+(2/3)*x.^2};
q_titles = {'ones(size(x))'; 'abs(x)'; 'x^2'; '(1/3)+(2/3)*x^2'};
for k =1:4
    %Code that generates the plot for each loop 
    figure;
    formatspec = 'Exact vs Scheme Plots for q({\\nu}) = %s';
    sgtitle(sprintf(formatspec, q_titles{k}));
end

It gives more control over what appears in the title.

[Braden Kerr]

Thank you

[Ameer Hamza]

I am glad to be of help!