Math Test

1 Limit

A limit:
limx → ∞f(x), 
which should appear as x → ∞ in italics, and «lim» in plain style. Inlined: limx → ∞f(x).
And why not, a sum:
i = 1x, 
where the sum’s limits should appear below (i = 1) and above () the . Inlined: i = 1x. Integral: i = 1x.

2 Numeration

Equations can be numbered, like .
(1) y = x
And also like .
(2) x = 3 
Notice that eq. comes after eq. .
Some equations can also be numbered, even if they don’t have a label.
(3) x = 2y
Other equations that contain * should not numbered, but perhaps aligned:
left right
Now a random environment:
x
y
.

3 Parentheses

Some delimiters also taken from the Spanish Lyx User’s Guide. Array:
[
12 2
3 4 × yx
]
And inline array [
a b
c dio
]
.
There are also big brackets: (a) [b] {c} d |e| f.

4 Fraction

A big recursive fraction:
1(1 + (11 + (11 + 2x)))
A nice fraction: 56.
A non-diminishing fraction containing alignments:
11 + (11 + x × 11 + x).

5 Roots

A square root: 3. A more complex square root in a fraction:
1(1 + 2(11 + 2) + 12).
Higher order roots: 3x + y, x + 1Weight. In a fraction:
7884xs + 5(78x + 45y) × Heightsin(x + 1) + 5.

6 Cases

Used to switch several values.
y = 
x i = 0, 
x + 1 i < 3

7 Fonts

Fonts can be switched on and off.
By default, text in formulae is shown italicized. Variable: meters.
Some font styles. Roman: 1 mathrm. Sans serif: 2 mathsf. Typewriter: 3 mathtt. Bold: 4 mathbf.
Regular text. Normal text: 5 textfm. Literal text: 6 mbox text. Phonetic alphabet: 7 abcde. Regular text can be embedded into formulae: regular text \command \another command \\no spaces allowed.
Units can be shown with or without a magnitude. Withouth: km. With: 57 km. With a fraction: 20 kmh.

8 Bye-bye

That’s all folks!