Math Tools

Equa Images

Equa Images turns a compact, LaTeX-like math markup into a PNG image, rendered on the fly and cached so the same equation never has to be redrawn twice. Type an equation below and watch the preview update as you go — every image is free to download, print, or embed directly in another page with a single <img> tag. Scroll down for a full command reference covering Greek letters, sums, integrals, roots, matrices, and more.

Advertisement

Equation input

Type an equation using the markup described below — it renders live as you type.

Equation

Font size

Preview

⬇ Download PNG

Paste this in any web page to embed the equation above:

Example inputs

Click one to try it.

Advertisement

Equa Images API

This same rendering engine is available as a REST API if you'd like to generate equation images from your own application — check it out and subscribe.

Equation help and manual

Every command below can be typed directly into the equation field above — combine them freely, e.g. sqrt{'{'}x^2+y^2{'}'} or delim{'{'}lbrace{'}'}{'{'}x{'}'}{'{'}rbrace{'}'}.

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

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}: $delim{vert}{x}{vert}$

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: $vert$
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{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}: $hat{express}$

Parenthesis

visible: (x)
invisible: {x}