eLyXer Math Showcase
Alex Fernández (elyxer@gmail.com)
1 Introduction
This document is intended as a showcase of the mathematical abilities of eLyXer; for more information be sure to visit the
main page.
There is a
non-Unicode version of this page with midspaces and a
Unicode version with mathematical spaces (generated with
--unicode). Mind you, despite the name spaces are the only difference. Check the one that best suits you.
2 Characters
Math characters are all over the map.
2.1 Greek Symbols
Greek symbols are very important in equations: φ, π, Ξ. eLyXer offers a complete set in both upper case: AΩ and lower case: αω.
2.2 Math Symbols
eLyXer supports the whole set of math symbols in
John D. Cook's list.:
∃∂∇ ≥ . It can also render a few more:
∝ × .
2.3 Other Symbols
There are other symbols like arrows: ← → , or geometrical shapes: ○, □. eLyXer offers limited support for them.
2.4 Spaces
Equations look good when items are properly separated. The main separation is the Medium Mathematical Space:
x = 3.
Note: if you are viewing the non-Unicode version of this page then you are in fact seeing midspaces, which are very similar but not exactly the same: 418em for medium mathematical spaces versus 12en, where 1 em = 2 en. Try out the Unicode version — and viceversa. You can check out what version this page is in the page title.
3 Numeration
Equations can be numbered, like
↓.
Notice that eq.
↑ comes after eq.
↑.
4 Simple Structures
Let’s now see a few of the simpler structures that eLyXer can output.
4.1 Fractions
A simple fraction:
12.
Inlined:
23.
A big recursive fraction:
1(1 + (11 + (11 + 2x)))
4.2 Limits
A limit must appear below the main symbol:
limx → ∞f(x),
which should appear as
x → ∞ in italics, and «lim» in plain style. Note that in HTML the limit does not actually appear below the «lim» but to the right. Inlined:
limx → ∞f(x).
Limits are also used in sums:
∑∞i = 1x,
where the sum’s limits should appear below (
i = 1) and above (
∞) the
∑. Inlined:
∑∞i = 1x. Also in integrals:
∫∞i = 1x.
4.3 Roots
A square root:
√3. A more complex root in a fraction:
1(1 + √2(11 + √2) + √12).
5 Complex Structures
In this section we will explore arrays and related constructs.
5.1 Arrays
An inline array
[
]: is always shown in the same line.
An independent array is shown on its own line:
Apart from that the appearance should be the same.
5.2 Brackets
Arrays are separated by brackets: (a) [b] {c} ⟨d⟩ |e|. There are also big brackets: ⟨f⟩.
5.3 Cases
Used to switch between several values.
That’s all folks!
Copyright (C) 2009 Alex Fernández (elyxer@gmail.com)