MATLAB Language Useful tricks Comment blocks
Example
If you want to comment part of your code, then comment blocks may be useful. Comment block starts with a %{ in a new line and ends with %} in another new line:
a = 10;
b = 3;
%{
c = a*b;
d = a-b;
%}
This allows you fo fold the sections that you commented to make the code more clean and compact.
These blocks are also useful for toggling on/off parts of your code. All you have to do to uncomment the block is add another % before it strats:
a = 10;
b = 3;
%%{ <-- another % over here
c = a*b;
d = a-b;
%}
Sometimes you want to comment out a section of the code, but without affecting its indentation:
for k = 1:a
b = b*k;
c = c-b;
d = d*c;
disp(b)
end
Usually, when you mark a block of code and press Ctrl+r for commenting it out (by that adding the % automatically to all lines, then when you press later Ctrl+i for auto indentation, the block of code moves from its correct hierarchical place, and moved too much to the right:
for k = 1:a
b = b*k;
% c = c-b;
% d = d*c;
disp(b)
end
A way to solve this is to use comment blocks, so the inner part of the block stays correctly indented:
for k = 1:a
b = b*k;
%{
c = c-b;
d = d*c;
%}
disp(b)
end
