[gnumeric] Docs: regenerate docs for new functions.

[Morten Welinder <mortenw src gnome org>]

commit 1f36db40f3871d65a9eb750f1a547479f4655d46
Author: Morten Welinder <terra gnome org>
Date:   Sat Nov 17 19:58:25 2018 -0500

    Docs: regenerate docs for new functions.

 doc/C/func.defs     | 19 ++++++++++++++-
 doc/C/functions.xml | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 84 insertions(+), 2 deletions(-)
---
diff --git a/doc/C/func.defs b/doc/C/func.defs
index 2d4f14490..a93014ba9 100644
--- a/doc/C/func.defs
+++ b/doc/C/func.defs
@@ -3076,7 +3076,7 @@ The depreciation coefficient used is:
 @CATEGORY=Lookup
 @FUNCTION=INDEX
 @SHORTDESC=reference to a cell in the given @{array}
-@SYNTAX=INDEX(array,row,col,area)
+@SYNTAX=INDEX(array,row,col,area,…)
 @ARGUMENTDESCRIPTION=@{array}: cell or inline array
 @{row}: desired row, defaults to 1
 @{col}: desired column, defaults to 1
@@ -3614,6 +3614,15 @@ The depreciation coefficient used is:
 @EXCEL=This function is Excel compatible.
 @SEEALSO=CEIL,CEILING,FLOOR,ABS,MOD
 
+@CATEGORY=Mathematics
+@FUNCTION=LAMBERTW
+@SHORTDESC=the Lambert W function
+@SYNTAX=LAMBERTW(x,k)
+@ARGUMENTDESCRIPTION=@{x}: number
+@{k}: branch
+@NOTE=@{k} defaults to 0, the principal branch. @{k} must be either 0 or -1.
+@SEEALSO=EXP
+
 @CATEGORY=Mathematics
 @FUNCTION=LCM
 @SHORTDESC=the least common multiple
@@ -4164,6 +4173,14 @@ Strings and empty cells are simply ignored.
 @DESCRIPTION=NT_PI returns the number of primes less than or equal to @{n}.
 @SEEALSO=ITHPRIME,NT_PHI,NT_D,NT_SIGMA
 
+@CATEGORY=Number Theory
+@FUNCTION=NT_RADICAL
+@SHORTDESC=Radical function
+@SYNTAX=NT_RADICAL(n)
+@ARGUMENTDESCRIPTION=@{n}: positive integer
+@NOTE=The function computes the product of its distinct prime factors
+@SEEALSO=NT_D,ITHPRIME,NT_SIGMA
+
 @CATEGORY=Number Theory
 @FUNCTION=NT_SIGMA
 @SHORTDESC=sigma function
diff --git a/doc/C/functions.xml b/doc/C/functions.xml
index 72d829235..ae493e6a3 100644
--- a/doc/C/functions.xml
+++ b/doc/C/functions.xml
@@ -9864,7 +9864,7 @@
       </refpurpose>
       </refnamediv>
       <refsynopsisdiv>
-        
<synopsis><function>INDEX</function>(<parameter>array</parameter>,<parameter>row</parameter>,<parameter>col</parameter>,<parameter>area</parameter>)</synopsis>
+        
<synopsis><function>INDEX</function>(<parameter>array</parameter>,<parameter>row</parameter>,<parameter>col</parameter>,<parameter>area</parameter>,<parameter/>…)</synopsis>
       </refsynopsisdiv>
       <refsect1>
         <title>Arguments</title>
@@ -11938,6 +11938,38 @@
       </para>
       </refsect1>
     </refentry>
+    <refentry id="gnumeric-function-LAMBERTW">
+      <refmeta>
+        <refentrytitle>
+          <function>LAMBERTW</function>
+        </refentrytitle>
+      </refmeta>
+      <refnamediv>
+        <refname>
+          <function>LAMBERTW</function>
+        </refname>
+        <refpurpose>
+        the Lambert W function
+      </refpurpose>
+      </refnamediv>
+      <refsynopsisdiv>
+        <synopsis><function>LAMBERTW</function>(<parameter>x</parameter>,<parameter>k</parameter>)</synopsis>
+      </refsynopsisdiv>
+      <refsect1>
+        <title>Arguments</title>
+        <para><parameter>x</parameter>: number</para>
+        <para><parameter>k</parameter>: branch</para>
+      </refsect1>
+      <refsect1>
+        <title>Note</title>
+        <para><parameter>k</parameter> defaults to 0, the principal branch. <parameter>k</parameter> must be 
either 0 or -1.</para>
+      </refsect1>
+      <refsect1>
+        <title>See also</title>
+        <para><link linkend="gnumeric-function-EXP"><function>EXP</function></link>.
+      </para>
+      </refsect1>
+    </refentry>
     <refentry id="gnumeric-function-LCM">
       <refmeta>
         <refentrytitle>
@@ -14033,6 +14065,39 @@
       </para>
       </refsect1>
     </refentry>
+    <refentry id="gnumeric-function-NT_RADICAL">
+      <refmeta>
+        <refentrytitle>
+          <function>NT_RADICAL</function>
+        </refentrytitle>
+      </refmeta>
+      <refnamediv>
+        <refname>
+          <function>NT_RADICAL</function>
+        </refname>
+        <refpurpose>
+        Radical function
+      </refpurpose>
+      </refnamediv>
+      <refsynopsisdiv>
+        <synopsis><function>NT_RADICAL</function>(<parameter>n</parameter>)</synopsis>
+      </refsynopsisdiv>
+      <refsect1>
+        <title>Arguments</title>
+        <para><parameter>n</parameter>: positive integer</para>
+      </refsect1>
+      <refsect1>
+        <title>Note</title>
+        <para>The function computes the product of its distinct prime factors</para>
+      </refsect1>
+      <refsect1>
+        <title>See also</title>
+        <para><link linkend="gnumeric-function-NT_D"><function>NT_D</function></link>,
+        <link linkend="gnumeric-function-ITHPRIME"><function>ITHPRIME</function></link>,
+        <link linkend="gnumeric-function-NT_SIGMA"><function>NT_SIGMA</function></link>.
+      </para>
+      </refsect1>
+    </refentry>
     <refentry id="gnumeric-function-NT_SIGMA">
       <refmeta>
         <refentrytitle>