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diff --git a/doc/lispref/ChangeLog b/doc/lispref/ChangeLog
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+2012-09-11  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Simplify, document, and port floating-point (Bug#12381).
+        * numbers.texi (Float Basics, Arithmetic Operations, Math Functions):
+        Document that / and mod (with floating point arguments), along
+        with asin, acos, log, log10, expt and sqrt, return special values
+        instead of signaling exceptions.
+        (Float Basics): Document that logb operates on the absolute value
+        of its argument.
+        (Math Functions): Document that (log ARG BASE) also returns NaN if
+        BASE is negative.  Document that (expt X Y) returns NaN if X is a
+        finite negative number and Y a finite non-integer.
+
+2012-09-09  Chong Yidong  <cyd@gnu.org>
+
+        * lists.texi (Sets And Lists): Explain that the return value for
+        delete should be used, like for delq.
+
+        * minibuf.texi (Yes-or-No Queries): Document recentering and
+        scrolling in y-or-n-p.  Remove gratuitous example.
+
+        * searching.texi (Search and Replace): Document window scrolling
+        entries in query-replace-map.
+
+2012-09-08  Chong Yidong  <cyd@gnu.org>
+
+        * syntax.texi (Syntax Table Internals): Define "raw syntax
+        descriptor" terminology (Bug#12383).
+        (Syntax Descriptors): Mention raw syntax descriptors.
+
+2012-09-07  Chong Yidong  <cyd@gnu.org>
+
+        * variables.texi (Creating Buffer-Local): Fix description of
+        local-variable-if-set-p (Bug#10713).
+
+        * eval.texi (Intro Eval): Add index entry for sexp (Bug#12233).
+
+        * windows.texi (Display Action Functions)
+        (Choosing Window Options): Remove obsolete variable
+        display-buffer-reuse-frames.
+        (Switching Buffers): Minor doc tweak for switch-to-buffer.
+
+        * positions.texi (Narrowing): Document buffer-narrowed-p.
+
+        * markers.texi (Moving Markers): Add xref to Point (Bug#7151).
+
+        * syntax.texi (Low-Level Parsing): Add xref to Parser State
+        (Bug#12269).
+
+2012-09-04  Lars Ingebrigtsen  <larsi@gnus.org>
+
+        * debugging.texi (Explicit Debug): Document `debug-on-message'.
+
 2012-09-02  Chong Yidong  <cyd@gnu.org>
 
         * windows.texi (Window Configurations): Recommend against using