MATLAB's most basic data type is the array, and one can perform many operations on the whole array at once:
Try something like this instead of those loops:
profilo2 = zeros(1,tmax/h);
idx = 1:temporaggiungimento/h;
profilo2(idx) = profilo1;
idy = 1+temporaggiungimento/h:tmax/h;
profilo2(idy) = 1100+273;
And the time difference:
Elapsed time is 0.007594 seconds. % my code
Elapsed time is 108.509334 seconds. % your code
Yet the output is exactly the same:
>> isequal(profilo,profilo2)
ans =
1
More than ten thousand times faster with effective use of arrays:
