The fix is conceptually straightforward; SE would have to adjust their preview function so that any definitions made within the post itself are "sandboxed", and cleared out each time the preview refreshes.
Similarly, diagrams, graphs, illustrations, energy diagrams and examples associated to daily life make this chapter very interesting and easy to learn.
Then they learn to present a descriptive account of electromagnetic waves. Of course actually submitting that edit will make them show up as errors.
The chapter begins with Introduction to Electromagnetic Waves and further proceeds to explain topics such as Displacement Current, Sources of electromagnetic waves, Nature of electromagnetic waves, Electromagnetic Spectrum, Radio waves, Microwaves, Infrared waves, Visible rays, Ultraviolet rays, X-rays and Gamma rays.
I'm not sure whether to consider this a bug, because it exceeds the scope of where MathJax is meant to be used, namely static pages where the MathJax processor runs once, or at the most, live-update pages where content is added on at the end, not replaced in the middle of the page.
Students will learn about the source, creation, deviation and applications of different types of Electromagnetic Waves.
That script triggers another run of the MathJax processor, this time only operating on the contents of the preview pane i. Detailed derivations to help derive formulas and equations will aid to solve the problems and understand the concepts.