But you use up math channels fast that way. And they are very limited in a frist place so you will sometimes need several just to achieve some math..
You are obvioously a more advanced user than me -- I don't see myself using up 4 math channels anytime soon. No doubt that one can construe use cases where one could use more, but certainly not a deal breaker for me...
Well filters is in math channel, FFT is in math channel, you have 4 arithmetic operations and few functions. But you can use only 1 at the same time. So if you want to filter out PWM on 2 channels that's 2 math gone and then you multiply them there goes 3rd...
That is my point. Whether people use math channels (how or at all) is up to them..
I'm not even criticizing here, just point out realities..
I already pointed out this is very basic scope.
But people say "it also has 4 math channels" without realizing not all math is created equal. For instance Micsig has filter on every channel. It has only 1 math channel but has advanced math where you can use complex formula. With that you can create many things you cannot with DHO800/900/1000/4000. And that is inexpensive scope. Touchscreen Siglents have 4 math channels that are even more advanced than Micsigs one. But those are advanced analytical scopes and price is quite different....
That being said, DHO has basic math that will do basic stuff we expect.