version 1.24, 2011/07/23 18:44:42 |
version 1.29, 2013/07/13 19:41:16 |
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.Sh DESCRIPTION |
.Sh DESCRIPTION |
The |
The |
.Nm eqn |
.Nm eqn |
language is a equation-formatting language. |
language is an equation-formatting language. |
It is used within |
It is used within |
.Xr mdoc 7 |
.Xr mdoc 7 |
and |
and |
.Xr man 7 |
.Xr man 7 |
.Ux |
.Ux |
manual pages. |
manual pages. |
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It describes the |
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.Em structure |
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of an equation, not its mathematical meaning. |
This manual describes the |
This manual describes the |
.Nm |
.Nm |
language accepted by the |
language accepted by the |
.Xr mandoc 1 |
.Xr mandoc 1 |
utility, which correspond to the Second Edition eqn specification (see |
utility, which corresponds to the Second Edition eqn specification (see |
.Sx SEE ALSO |
.Sx SEE ALSO |
for references). |
for references). |
.Pp |
.Pp |
Line 114 partial (partial differential), inf (infinity), >> (mu |
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Line 117 partial (partial differential), inf (infinity), >> (mu |
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The following control statements are available: |
The following control statements are available: |
.Bl -tag -width Ds |
.Bl -tag -width Ds |
.It Cm define |
.It Cm define |
Replace all occurances of a key with a value. |
Replace all occurrences of a key with a value. |
Its syntax is as follows: |
Its syntax is as follows: |
.Pp |
.Pp |
.D1 define Ar key cvalc |
.D1 define Ar key cvalc |
Line 129 This allows for arbitrary enclosure of terms (not just |
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Line 132 This allows for arbitrary enclosure of terms (not just |
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.D1 define Ar foo cbar bazc |
.D1 define Ar foo cbar bazc |
.Pp |
.Pp |
It is an error to have an empty |
It is an error to have an empty |
.Ar key or |
.Ar key |
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or |
.Ar val . |
.Ar val . |
Note that a quoted |
Note that a quoted |
.Ar key |
.Ar key |
Line 272 was added in 2011. |
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Line 276 was added in 2011. |
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This |
This |
.Nm |
.Nm |
reference was written by |
reference was written by |
.An Kristaps Dzonsons Aq kristaps@bsd.lv . |
.An Kristaps Dzonsons Aq Mt kristaps@bsd.lv . |