===================================================================
RCS file: /cvs/mandoc/eqn.7,v
retrieving revision 1.15
retrieving revision 1.17
diff -u -p -r1.15 -r1.17
--- mandoc/eqn.7	2011/07/22 13:48:52	1.15
+++ mandoc/eqn.7	2011/07/22 14:55:07	1.17
@@ -1,4 +1,4 @@
-.\"	$Id: eqn.7,v 1.15 2011/07/22 13:48:52 kristaps Exp $
+.\"	$Id: eqn.7,v 1.17 2011/07/22 14:55:07 kristaps Exp $
 .\"
 .\" Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
 .\"
@@ -66,6 +66,7 @@ eqn     : box | eqn box
 box     : text
         | "{" eqn "}"
         | "define" text text
+        | "gsize" text
         | "set" text text
         | "undef" text
         | box pos box
@@ -89,12 +90,20 @@ non-empty quoted string.
 Unless within a quoted string, white-space (and enclosing literal quote
 pairs) is thrown away.
 Quoted strings are not scanned for replacement definitions.
-The following text tokens are translated into an acceptable front-end
-format, if available: alpha, beta, chi, delta, epsilon, eta, gamma,
-iota, kappa, lambda, mu, nu, omega, omicron, phi, pi, psi, rho, sigma,
-tau, theta, upsilon, xi, zeta, DELTA, GAMMA, LAMBDA, OMEGA, PHI, PI,
-PSI, SIGMA, THETA, UPSILON, and XI.
 .Pp
+The following TEXT terms are translated into a rendered glyph, if
+available: alpha, beta, chi, delta, epsilon, eta, gamma, iota, kappa,
+lambda, mu, nu, omega, omicron, phi, pi, psi, rho, sigma, tau, theta,
+upsilon, xi, zeta, DELTA, GAMMA, LAMBDA, OMEGA, PHI, PI, PSI, SIGMA,
+THETA, UPSILON, XI, inter (intersection), union (union), prod (product),
+int (integral), sum (summation), grad (gradient), del (vector
+differential), times (multiply), cdot (centre-dot), nothing (zero-width
+space), approx (approximately equals), prime (prime), half (one-half),
+partial (partial differential), inf (infinity), >> (much greater), <<
+(much less), \-> (left arrow), <\- (right arrow), += (plus-minus), !=
+(not equal), == (equivalence), <= (less-than-equal), and >=
+(more-than-equal).
+.Pp
 The following control statements are available:
 .Bl -tag -width Ds
 .It Cm define
@@ -133,6 +142,15 @@ foo bar 'baz'
 .Ed
 .Pp
 Self-referencing definitions will raise an error.
+.It Cm gsize
+Set the default size of subsequent output.
+Its syntax is as follows:
+.Pp
+.D1 define Ar size
+.Pp
+The
+.Ar size
+value should be an integer.
 .It Cm set
 Set an equation mode.
 Both arguments are thrown away.