Baseline alignment in equations

[bluss]

Continuing the discussion from A snippet to debug font by visualizing baseline, cap-height, etc:

On the topic of baselines in equations, I did some research on this in a previous topic.

Code for the result is here, the short story is that if you drop a mannot-like marker into the equation, it will place itself on the baseline, black circle in the following image:

The colored circles are the bounding box. Once you have a mannot-like marker for the baseline and the bounding box, you can compute the relative distance.

[zerosmemories]

Wow, really appreciate you! I have test your code, and it works fine.
To see more clear, I replace black dot to red line.

And thanks @Y.D.X.

Another question, how do I combine mbbox funtion with mitex?
Oh, I got it.

$mbbox(mi("\int_a^b x^{2^{2^3}} \mathrm{d} x"))$

[Andrew]

I don’t see how it’s a Questions topic.