In a longer work you might wish to have some references on a per-chapter basis, or similar. You can make a “references” subdivision anywhere to hold bibliographic items, and you can reference the items like any other item. For example, we can cite the article below [10.4.3, Chapter R], included an indication that a specific chapter may be relevant.
No problem here, but the next two are in an “exercise group” with an introduction and a conclusion, along with an optional title. The two problems of the exercise group should be indented some to indicate the grouping.
N.B. An <exercisegroup> is meant to hold a collection of (short) exercises with common, shared, instructions. Do not use this structure to subdivide an <exercises> division, as you will eventually be disappointed. Instead, use the available, but under development as of 2019-11-02, <subexercises>, which requires a <title>.
\(f(x)=x^3\text{,}\)\(\frac{df}{dx}\text{.}\) This sentence is just a bunch of gibberish to check where the second line of the problem begins relative to the first line.
We cross-reference the next problem in this exercise group. For the phrase-global form, the common element of the cross-reference and the target should be the exercises division, and not the enclosing exercisegroup: Exercise 3 of Exercises 10.2.
This isn’t really an exercise, but an explanation that the next <exercisegroup> has a title and no <introduction>, which once resulted in some aberrant formatting in LaTeX output.
\(f(x)=x^3\text{,}\)\(\frac{df}{dx}\text{.}\) This sentence is just a bunch of gibberish to check where the second line of the problem begins relative to the first line.
We cross-reference the next problem in this exercise group. For the phrase-global form, the common element of the cross-reference and the target should be the exercises division, and not the enclosing exercisegroup: Exercise 3 of Exercises 10.2.
One of the few things you can place inside of mathematics is a “fill-in” blank. We demonstrate a few scenarios here. See details on syntax in Subsection 4.7–the use is identical within mathematics.
Inside inline math (short, space for \(x\)): \(\sin(\fillinmath{x})\)
Inside inline math (default, space for \(XXX\)): \(\sin(\fillinmath{XXX})\)
Inside exponents and subscripts (each is space for the string “12”). In this case, be sure to wrap your exponents and subscripts in braces, as would be good LaTeX practice anyway: \(x^{5+\fillinmath{12}}\,y_{\fillinmath{12}}\)
Inside inline math (too long for this line probably, 40 characters long): \(\tan(\fillinmath{Mxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx})\)
\begin{align*}
y &= x^7\,x^8\\
&= x^{\fillinmath{15}}
\end{align*}
This fillin has the historical @characters attribute for a fillin inside math: \(1+\fillinmath{XXXXX}+4=10\text{,}\) which may be more convenient, but may not side properly in places like subscripts, superscripts, fractions, limits of integrals, and so on.
An <exercisegroup> can have a cols attribute taking a value from 2–6. Exercises will progress by row, in so many columns. On a small screen, the HTML exercises may reorganize into fewer columns.
This feature was designed with short “drill” exercises in mind. With long exercises, or exercises with long hints, answers, or solutions, there is a risk that the LaTeX output will have bad page breaks in the vicinity (just before) such an exercise that occupies too much vertical space. Edit, rearrange, or use fewer columns to see if the situation improves.
H. Davenport, Multiplicative Number Theory, GTM 74 Springer-Verlag New York, NY; (2000) xiv+177. [A note may accompany a bibliographic item, such as saying the manuscript is under review. But it cannot contain any formatting.]
Ibid., Diffeomorphisms of Penciled Fiber Bundles, Part 2, Mathematicians of America (2021), 3 no. 4, 102–103.
This is a conclusion, which has not been used very much in this sample. Did you see that the entry for [10.4.3] has a short annotation? So you can make annotated bibliographies easily.