single character inline equation. (valid=True) . (a) .

inline equation with single greek character (valid=True) . (\varphi) .

simple equation starting and ending with numbers. (valid=True) . (1+1=2) .

simple equation including special html character. (valid=True) . (1+1<3) .

equation including backslashes. (valid=True) . (a \backslash) .

use of currency symbol (valid=True) . You get 3$ if you solve (1+2) .

use of currency symbol (valid=True) . If you solve (1+2) you get $3 .

inline fraction (valid=True) . (\frac{1}{2}) .

inline column vector (valid=True) . (\begin{pmatrix}x\\y\end{pmatrix}) .

inline bold vector notation (valid=True) . ({\tilde\bold e}_\alpha) .

exponentiation (valid=True) . (a^{b}) .

conjugate complex (valid=True) . (a^*b) with (a^*) .

Inline multi-line (valid=True) . a (a \not=1) b .

Inline multi-line with newline (valid=False) . a (a

\not=1) b .

single block equation, greek index (valid=True) . [e_\alpha] .

display equation on its own single line. (valid=True) . [1+1=2] .

inline equation followed by block equation. (valid=True) . ({e}_x)

[e_\alpha] .

underline tests (valid=True) . [c{\bold e}x = a{\bold e}\alpha - b\tilde{\bold e}_\alpha] .

non-numeric character before opening $ or after closing $ or both is allowed. (valid=True) . a(1+1=2) (1+1=2)b c(x)d .

following dollar character ‘$’ is allowed. (valid=True) . (x) $ .

consecutive inline equations. (valid=True) . (x) (y) .

inline equation after ‘-’ sign in text. (valid=True) . so-what is (x) .

display equation with line breaks. (valid=True) . [ 1+1=2 ] .

multiple equations (valid=True) . [ a = 1 ]

[ b = 2 ] .

equation followed by a labelled equation (valid=True) . [ a = 1 ]

[ b = 2 ] (1) .

multiline equation. (valid=True) . [\begin{matrix} f & = & 2 + x + 3 \ & = & 5 + x \end{matrix}] .

vector equation. (valid=True) . [\begin{pmatrix}x_2 \\ y_2 \end{pmatrix} = \begin{pmatrix} A & B \\ C & D \end{pmatrix}\cdot \begin{pmatrix} x_1 \\ y_1 \end{pmatrix}] .

display equation with equation number. (valid=True) . [f(x) = x^2 - 1] (1) .

inline equation following code section. (valid=True) . code(a-b) .

equation following code block. (valid=True) .

code

[a+b] .

numbered equation following code block. (valid=True) .

code

[a+b](1) .

Equations in list. (valid=True) .

1. (1+2)
2. (2+3)
   1. (3+4) .

Inline sum. (valid=True) . (\sum_{i=1}^n) .

Sum without equation number. (valid=True) . [\sum_{i=1}^n] .

Sum with equation number. (valid=True) . [\sum_{i=1}^n] (2) .

equation number always vertically aligned. (valid=True) . [{\bold e}(\varphi) = \begin{pmatrix} \cos\varphi\\\sin\varphi \end{pmatrix}] (3) .

inline equations in blockquote. (valid=True) .

see (a = b + c) (c^2=a^2+b^2) (2) (c^2=a^2+b^2) .

display equation in blockquote. (valid=True) .

formula

[ a+b=c] (2)

in blockquote. .