expressions documentation
Arithmetic
equal to
a = b
$$a = b$$
not equal to
a \neq b
$$a \neq b$$
approximately equal to
a \approx b
$$a \approx b$$
addition
a + b
$$a + b$$
subtraction
a - b
$$a - b$$
plus or minus
a \pm b
$$a \pm b$$
minus or plus
a \mp b
$$a \mp b$$
division
a \div b
$$a \div b$$
fractions
a \over b
$$a \over b$$
less than or equal to
a \leq b
$$a \leq b$$
greater than or equal to
a \geq b
$$a \geq b$$
Wrappers
parentheses
(a + b)^2
$$(a + b)^2$$
group (semantic)
{a + b} \over {a - b}$${a + b} \over {a - b}$$
parentheses (stretched)
\left ( {a \over b} \right )$$\left ( {a \over b} \right )$$
absolute value (stretched)
\left | {a + b} \over {a - b} \right |$$\left | {a + b} \over {a - b} \right |$$
matrices
\left [
\matrix {
a & b \\
c & d
}
\right ]$$\left [
\matrix {
a & b \\
c & d
}
\right ]$$
piecewise
\begin{cases}
x & x\ge 0 \\
-x & x\lt 0
\end{cases}$$\begin{cases}
x & x\ge 0 \\
-x & x\lt 0
\end{cases}$$
Exponents
superscripts (exponents)
a^b
$$a^b$$
subscripts
a_b
$$a_b$$
logarithms
\log_b{a}$$\log_b{a}$$
square roots
\sqrt{a}$$\sqrt{a}$$
nth roots
\sqrt[n]{a}$$\sqrt[n]{a}$$
Geometry
degrees symbol
90^\circ
$$90^\circ$$
angle symbol
\angle A
$$\angle A$$
parallel symbol
A \parallel B
$$A \parallel B$$
perpendicular symbol
A \perp B
$$A \perp B$$
congruency
A \cong B
$$A \cong B$$
sine
\sin(x)
$$\sin(x)$$
cosine
\cos(x)
$$\cos(x)$$
tangent
\tan(x)
$$\tan(x)$$
inverse sine (arc sine)
\sin^{-1}(x)$$\sin^{-1}(x)$$
Greek Symbols
alpha
\alpha
$$\alpha$$
beta
\beta
$$\beta$$
delta
\delta
$$\delta$$
delta (capital)
\Delta
$$\Delta$$
pi
\pi
$$\pi$$
sigma
\sigma
$$\sigma$$
Sigma
\Sigma
$$\Sigma$$
theta
\theta
$$\theta$$
Calculus
infinity
\infty
$$\infty$$
limits
\lim_{x \to a} \ f(x)$$\lim_{x \to a} \ f(x)$$
integrals
\int_a^b f(x)
$$\int_a^b f(x)$$
sums
\sum_{i=1}^n f(x)$$\sum_{i=1}^n f(x)$$
Logic
NOT operation
\neg a
$$\neg a$$
AND operation
a \wedge b
$$a \wedge b$$
OR operation
a \vee b
$$a \vee b$$
XOR operation
a \veebar b
$$a \veebar b$$
implication
a \rightarrow b
$$a \rightarrow b$$
double implication
a \leftrightarrow b
$$a \leftrightarrow b$$
logical equivalence
a \Leftrightarrow b
$$a \Leftrightarrow b$$
Whitespace
space
a \ b
$$a \ b$$
5 spaces
a \quad b
$$a \quad b$$
line break
a \\ b
$$a \\ b$$