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This was keyed in as: <texcode>\setupformulas[align=left]\placeformula \startformula c^2 = a^2 + b^2 \stopformula\setupformulas[align=middle]\placeformula \startformula c^2 = a^2 + b^2 \stopformula\setupformulas[align=right]\placeformula \startformula c^2 = a^2 + b^2 \stopformula</texcode> When tracing is turned on (<{{cmd>|tracemathtrue</cmd>}}) you can visualize the bounding box of the formula,
<context>\tracemathtrue\setupformulas[align=left,distance=2em]\startformula c^2 = a^2 + b^2 \stopformula\placeformula \startformula c^2 = a^2 + b^2 \stopformula</context>{{Columns navbox}}
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Text replacement - "<cmd>" to "{{cmd|"
< [[Math]] Be sure to also read the recent (2006-08-02) [http://dl.contextgarden.net/myway/mathalign.pdf Using \startalign and friends] written by Aditya Mahajan. This set of math examples is taken from the comments in the <tt>[[source:core-mat.tex|core-mat.tex</tt> ]] file, which contains most of the core ConTeXt math macros. The <tt>textwidth</tt> has been set to 8 cm in these examples so that the page isn't too wide (see [[Layout]] and {{cmd|setuplayout}} for further information specific to layout).
----
<context>
\setuplayout[textwidth=8cm]
This is a bit of text for purpose of example.\epar
\startitemize
</context>
In the next examples we explicitly align formulas to the left (<{{cmd>|raggedleft</cmd>}}), center and right (<{{cmd>|raggedright</cmd>}}):
<texcode>\setupformulas[aligncontext source=left]\startformula c^2 "yes" text= a^2 + b^2 \stopformula"Or in print:">\setupformulassetuplayout[aligntextwidth=middle8cm]\startformula c^2 = a^2 + b^2 \stopformula\setupformulas[align=right]\startformula c^2 = a^2 + b^2 \stopformula</texcode> Or in print: <context>
\setupformulas[align=left]
\startformula c^2 = a^2 + b^2 \stopformula
</context>
With formula numbers these formulas look as followsthe code is:
<contextsource="yes" text="And the formulas look like:">\setuplayout[textwidth=8cm]
\setupformulas[align=left]
\placeformula \startformula c^2 = a^2 + b^2 \stopformula
</context>
<context>
\setuplayout[textwidth=8cm]
\tracemathtrue
\setupformulas[align=left]
As you can see, the dimensions are the natural ones, but if needed you can force a normalized line:
<texcode>\setupformulas[align=middle,strutcontext source="yes]\tracemathtrue\placeformula \startformula c^2 " text= a^2 + b^2 \stopformula</texcode> "This time we get a more spacy result. [Ed. Note: For this example equation, there appears to be no visible change.]"> <context>\setuplayout[textwidth=8cm]
\setupformulas[align=middle,strut=yes]
\tracemathtrue
We will now show a couple of more settings and combinations of settings. In centered formulas, the number takes no space
<texcodecontext source="yes">\tracemathtrue\setupformulassetuplayout[aligntextwidth=middle8cm]\startformula c^2 = a^2 + b^2 \stopformula\placeformula \startformula c^2 = a^2 + b^2 \stopformula</texcode> <context>
\tracemathtrue
\setupformulas[align=middle]
You can influence the placement of the whole box with the parameters <tt>leftmargin</tt> and <tt>rightmargin</tt>.
<texcodecontext source="yes">Some example text, again, to show where the right and left margins of the text block are.\tracemathtrue\setupformulassetuplayout[align=right,leftmargintextwidth=3em8cm]\startformula c^2 = a^2 + b^2 \stopformula\placeformula \startformula c^2 = a^2 + b^2 \stopformula \setupformulas[align=left,rightmargin=1em]\startformula c^2 = a^2 + b^2 \stopformula\placeformula \startformula c^2 = a^2 + b^2 \stopformula</texcode> <context>
Some example text, again, to show where the right and left margins of the text block are.
\tracemathtrue
\placeformula \startformula c^2 = a^2 + b^2 \stopformula
</context>
You can also inherit the margin from the environment.
<texcodecontext source="yes">Some example text, again, to show where the right and left margins of the text block are.\tracemathtrue\setupformulassetuplayout[aligntextwidth=right,margin=standard8cm]\startformula c^2 = a^2 + b^2 \stopformula\placeformula \startformula c^2 = a^2 + b^2 \stopformula</texcode> <context>
Some example text, again, to show where the right and left margins of the text block are.
\tracemathtrue
The distance between the formula and the number is only applied when the formula is left or right aligned.
<texcodecontext source="yes">\setuplayout[textwidth=8cm]
\tracemathtrue
\setupformulas[align=left,distance=2em]
\startformula c^2 = a^2 + b^2 \stopformula
\placeformula \startformula c^2 = a^2 + b^2 \stopformula
</texcodecontext>
[[Category:Math]]
