Using greater than and less than

I am trying to isolate a subset of data from a large set.

I want to find all the points that are less than or equal to (a) AND are greater than for equal to (b)

I have the following:

 [a,b] = find (lat(:,:) >= 44 &  <= 55)

Previously I used

 [a,b] find (lat(:,:) >= 44)

which worked perfectly. Now I receive "the unexpected matlab operator" error which it reaches the <

thanks for help,

[Walter Roberson]

I do not recall that any of the computer languages I have used have allowed that kind of abbreviation of logical comparisons. There might be some computer languages that allow it, but it is certainly not common.

Answer 1

[the cyclist]

 find (lat >= 44 &  lat <= 55)

[Barry H]

Well played, sir. Thank you

[BMAN]

I have a 3d matrix A(time*lat*lon). i want find the value which is greater than 10 at every grid point how to find that. i am using A(i,:,:) A(A > 10); but it is not giving correct ans