Equa Images

equa images is the easiest way to convert a math equation or a formula to an image (PNG). There is one API which you use to supply the formula and you get back the image to embed in your webpage or in anyother application. It is that simple...

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Formula Examples

List of all the various math operations supported

Usual commands

x+y : x+y
x-y : x-y
x*y : x*y
x/y : x/y
x^y : x^y
x_y : x_y
x<>y : x<>y
x>y : x>y
x>=y : x>=y
x<y : x<y
x<=y : x<=y

Greek Letters

alpha : alpha
beta : beta
gamma : gamma
delta : delta
epsilon : epsilon
varepsilon : varepsilon
zeta : zeta
eta : eta
theta : theta
vartheta : vartheta
iota : iota
kappa : kappa
lambda : lambda
mu : mu
nu : nu
xi : xi
pi : pi
varpi : varpi
rho : rho
varrho : varrho
sigma : sigma
varsigma : varsigma
tau : tau
upsilon : upsilon
phi : phi
varphi : varphi
chi : chi
psi : psi
omega : omega
Gamma : Gamma
Lambda : Lambda
Sigma : Sigma
Psi : Psi
Delta : Delta
Xi : Xi
Upsilon : Upsilon
Omega : Omega
Theta : Theta
Pi : Pi
Phi : Phi

Limits

lim{a}{x} : lim{a}{x}

Operators

int{a}{b}{x} : int{a}{b}{x}
doubleint{a}{b}{x} : doubleint{a}{b}{x}
tripleint{a}{b}{x} : tripleint{a}{b}{x}
oint{a}{b}{x} : oint{a}{b}{x}
sum{a}{b}{x} : sum{a}{b}{x}
prod{a}{b}{x} : prod{a}{b}{x}
bigcup{a}{b}{x} : bigcup{a}{b}{x}
bigcap{a}{b}{x} : bigcap{a}{b}{x}

Delimiters

delim{[}{x}{]} : delim{[}{x}{]}
delim{]}{x}{]} : delim{]}{x}{]}
delim{[}{x}{[} : delim{[}{x}{[}
delim{]}{x}{[} : delim{]}{x}{[}
delim{lbrace}{x}{rbrace} : delim{lbrace}{x}{rbrace}
delim{|}{x}{|} : delim{|}{x}{|}
delim{vert}{x}{vert} : delim{vert}{x}{vert}

Parenthesis

visible : (x)
invisible : {x}

Math Space

a~b : a~b

Symbols

infty : infty
in : in
notin : notin
forall : forall
exists : exists
notexists : notexists
partial : partial
approx : approx
pm : pm
inter : inter
union : union
ortho : ortho
parallel : parallel
backslash : backslash
prime : prime
wedge : wedge
vert : vert
lbrace : {
rbrace : }
circ : circ
varnothing : varnothing
subset : subset
notsubset : notsubset
cdots : cdots
vdots : vdots
ddots : ddots

Arrows

left : left
right : right
leftright : leftright
doubleleft : doubleleft
doubleright : doubleright
doubleleftright : doubleleftright
nearrow : nearrow
searrow : searrow

Sets

bbR : bbR
bbN : bbN
bbZ : bbZ
bbC : bbC

Roots

sqrt{a} : sqrt{a}
root{n}{a} : root{n}{a}

Matrix

matrix{num of lines}{num of columns}{first_element ... last_element}
Example :
matrix{2}{3}{a b c d e f g} : matrix{2}{3}{a b c d e f g}

Constructions

vec{express} : vec{express}

{express}under{foo} : {express}under{foo}

{express}over{foo} : {express}over{foo}

overline{express} : overline{express}

underline{express} : underline{express}

hat{express} : hat{express}

Tabular

tabular{lines description}{columns description}{first_element ... last_element}
lines description : sequence of 1 (draw the horizontal line) or 0 (don't draw the horizontal line) - the length of the sequence=num of lines+1
columns description : sequence of 1 (draw the vertical line) or 0 (don't draw the vertical line) - the length of the sequence=num of columns+1
Examples :
tabular{111}{1111}{a b c d e f g} : tabular{111}{1111}{a b c d e f g}

tabular{1001}{101}{1 2 3 4 5 6} : tabular{1001}{101}{1 2 3 4 5 6}