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* There are two different math modules TeX was designed for ease of typesetting books that contained mathematics. As ConTeXt is built on [http://dante.ctan.org/tex-archive/macros/context/contrib/maths/ CTAN]top of TeX, [[Math with nath|nath]] and [[Math with amsl|amsl]]it inherits all those features.* It is also possible In addition to use most [[LaTeX Math in these, ConTeXt|LaTeX equations in ConTeXt]] with a relatively small set adds lot of macros to make the typesetting of supporting definitionsmathematics easier.* The "native" ConTeXt way There are '''two''' kinds of '''math is [[MathML]], an application of [[XML]] modes''' --- rather verbose but mighty'''inline math and display math'''.* And there's a [[Math Mathematical expressions that are written with newmat|new the running text are called inline math; while mathematical expressions that break the flow of the text (such as formulas or equations) are called display math]] module . TeX takes care of proper spacing around expressions and provides macros to typeset most mathematical constructs.Complicated expressions can be built by working in steps---break down the expression into sub-expressions, build the sub-expressions and then combine them to get the distributioncomplicated expression.

ConTeXt supports inline === Display math (mathematical formulas set within ordinary paragraphs as part of the text) and display math (mathematics set on lines by themselves, often with equation numbers). Inline math is enclosed in "$" signs, while display math is enclosed in a <cmd>startformula</cmd> / <cmd>stopformula</cmd> pair.mode ===Type

Inline math is set as $c^2 = a^2 + b^2$, and display math as\placeformula\startformulac^2 = a^2 + b^2... \stopformula

This, when typeset, produces the following: <context>Inline math is set as $c^2 = a^2 + b^2$, and to get display math as\placeformula\startformulac^2 = a^2 + b^2mode.\stopformula</context>

A more complicated equation:$ ... $ % TeX style.\placeformula\startformula{{\theta_{\text{ConTeXt}}}^2 \over x+2} = \pmatrix{a_{11}&a_{12}&\ldots&a_{1n}\cr a_{21}&a_{22}&\ldots&a_{2n}\cr \vdots&\vdots&\ddots&\vdots\cr a_m{n1}&a_{n2}&\ldots&a_{nn}\cr... } \pmatrixmath{b_1 \cr b_2 \cr \vdots \cr b_n} + \sum_{j=1... }^\infty z^j \left( \sum_mathematics{\scriptstyle n=1 \atop \scriptstyle n \ne j... }^\infty Z_j^n \right)\stopformula

which produces<context>A more complicated equation:\placeformula\startformula{{\theta_{\text{ConTeXt}}}^2 \over x+2} = \pmatrix{a_{11}&a_{12}&\ldots&a_{1n}\cr a_{21}&a_{22}&\ldots&a_{2n}\cr \vdots&\vdots&\ddots&\vdots\cr a_{n1}&a_{n2}&\ldots&a_{nn}\cr} \pmatrix{b_1 \cr b_2 \cr \vdots \cr b_n} + \sum_{j=1}^\infty z^j \left( \sum_{\scriptstyle n=1 \atop \scriptstyle n \ne j}^\infty Z_j^n \right)Note to Plain TeX Users ===\stopformula</context> [http://wwwConTeXt is plain TeX compatible.ntgSo, if you have any old document written in plain TeX, it will work with ConTeXt.nl:8061/texmathThis does not mean that you will get pixel by pixel identical output with ConTeXt.pdf Here] For inline math, everything that you can try it "live" (PDF interface!)learnt for plain TeX is also true for ConTeXt. [[MathAlignment]] However, display math is covered on a separate pagesignificantly different. ==Formula Numbering== As mentioned above, formulas can be numbered using the '''Do not use <cmdcode>placeformula</cmd> command$$ .... This (and the related <cmd>placesubformula$$</cmdcode> command have an optional argument which can be used ''' to produce sub-formula numberingwrite display math formulas in ConTeXt, since you will not get the correct spacing around the formulas. For example:Instead use

Examples:\placeformula{a}\startformulac^2 = a^2 + b^2\stopformula \placesubformula{b}\startformulac^2 = a^2 + b^2... \stopformula

\placesubformula{b}\startformulac^2 = a^2 + b^2== Note to AMSTeX/LaTeX Users ===\stopformula<ConTeXt offers almost all the features that are present in AMSTeX and LaTeX. However, ConTeXt syntax is different. See this [http://dl.contextgarden.net/myway/context>-latex-math.pdf My Way] for how to 'translate' from amsmath syntax to ConTeXt syntax. [[LaTeX_Math_in_ConTeXt]] gives some brief ideas on how to get the LaTeX syntax to run in ConTeXt.

This is sufficient for cases where the standard ConTeXt equation numbers suffice=== Math symbols ===* [[Math/basic | How to input math]] (binary relations, greek letters, subscripts and where only one equation number is needed per formula. Howeversuperscripts)* Accents* underbrace, overbrace* [[Math/fractions | Fractions, there are many cases where this is insufficientBinomials, and <cmd>placeformula</cmd> defines <cmd>formulanumber</cmd> and <cmd>subformulanumber</cmd> commandsgenfrac, which provide hooks to allow the use of ConTeXt-managed formula numbers with plain TeX equation numberingcontinued fractions. These]]* Delimiters (big, when used within a formulabigg, simply return the formula number in properly formatted formleft, as can be seen in this simple example with plain TeX's <cmd>eqno<middle, right)* Integrals and Sums* ([[Math/cmd>. Note that the optional tag is inherited from <cmd>placeformula</cmd>.functions|Log like]]) functions* dots<texcode>* [[Multiline_equations#Cases|Cases]], matrices, bordermatrixMore examples* Arrows (see [http://dl.contextgarden.net/myway/matharrows.pdf Math Arrows])\placeformula{c}* [[Vectors]]\startformula\let\doplaceformulanumber\emptyc^2 = a^2 + b^2 \eqno{\formulanumber}\stopformula</texcode>* [[Product integral]]

<context>=== Display Math ===* [[Math/Display | Formula, formula number]]More examples* [[Multiline equations]] (see [http://dl.contextgarden.net/myway/mathalign.pdf Using \placeformula{c}mathalign and friends])\startformula* Math sub-alignment\let\doplaceformulanumber\empty* [[Math spacing]]c^2 = a^2 + b^2 \eqno{\formulanumber}\stopformula</context>* Discussion: [[User_talk:Zenlima | summary of formula numbering problems]] (comment: unverified)

<context>== Other Methods ==Yet more examples* There are two different math modules on [http://dante.ctan.org/tex-archive/macros/context/contrib/maths/ CTAN], [[Math with nath|nath]] and [[Math with amsl|amsl]]. And there's a [[Math with newmat|new math]] module in the distribution.\placeformula\startformula* Context now has inbuilt support for [[Multiline equations]]\eqalignno{c^2 &= * It is also possible to use most [[LaTeX Math in ConTeXt|LaTeX equations in ConTeXt]] with a^2 + b^2 &\formulanumber{a} \crrelatively small set of supporting definitions. a^2 + b^2 &= c^2 &\subformulanumber{b} \cr d^2 &= e^2 &\formulanumber\cr}\stopformula</context>* The "native" ConTeXt way of math is [[MathML]], an application of [[XML]] - rather verbose but mighty.

Note that both <cmd>formulanumber</cmd> and <cmd>subformulanumber</cmd> can be used within ==Science==* Esp. for physics there’s the same formula, [[Units]] module.* Additions to [[MathML]] are PhysML and the formula number is incremented as expectedChemML. Also, if an optional argument is specified in both <cmd>placefigure</cmd> and <cmd>formulanumber</cmd>, the latter takes precedence* [[Chemistry]]* There's a module for chemical structure formulae: [[Chemistry|PPCHTeX]] (works also with LaTeX).

There's a special command, <cmd>digits</cmd>, and a with its own manual about formatting numbers, see [http://www.pragma-ade.com/general/magazines/mag-0003.pdf Pasting digits together]

==Math [[Fonts]]Evaluating expressions in ConTeXt==(i.e. ''doing'' math)* See also [[Bold MathExpressions]]* [http://homepage.mac.com/atl/tex/EulerContext.pdf Euler in ConTeXt (using Euler math font)] by Adam Lindsay

==Science==* Esp. for physics there’s the [[units]] module.* Additions to [[MathML]] are PhysML and ChemML.* [[Chemistry]]* There's a module for chemical structure formulaeCategory: [[Chemistry|PPCHTeX]] (works also with LaTeX). It's based on [[Metapost]] and [[MetaFunMath]].