Array row is not added in for loop

I'm trying to add a new row whenever L*W*H = 50, but when I run it the array dimensiones does not change. What's going on...?

syms L W H;
dimensiones = [0, 0, 0];
for W = 1:100
    L = W*3;
    for H = 1:100
         if L*W*H==50
             dimensiones = [dimensiones; L, W, H];
         end
    end
end

Answer 1

[Jan]

What is the purpose of

syms L W H;

Why do you want to solve this symbolically? As soon as you omit this line, the code works fine. But let me mention, that there is no value, for which W * 3 * H equals 50. This easy to prove, because 50 is not a multiple of 3. If you use 51, which is 3 * 17, a row is added.

[Monica W]

Oh, that was silly of me...! I'm not sure what I was trying to do there with the symbolic variables.

I understand re: the 50 problem. It's what an exercise is asking me to do, but I guess it's either a trick question or poorly formulated...

Thanks Jan!

[Jan]

You are welcome. Maybe this question shows you, that many programming problems can be solved without writing some code. This is a valuable lesson.