[genius] Wed Apr 26 17:30:29 2017 Jiri (George) Lebl <jirka 5z com>
- From: George Lebl <jirka src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [genius] Wed Apr 26 17:30:29 2017 Jiri (George) Lebl <jirka 5z com>
- Date: Wed, 26 Apr 2017 22:29:40 +0000 (UTC)
commit f2e2c09907db3c5df13cda826bf341aedde0fa17
Author: Jiri (George) Lebl <jiri lebl gmail com>
Date: Wed Apr 26 17:30:33 2017 -0500
Wed Apr 26 17:30:29 2017 Jiri (George) Lebl <jirka 5z com>
* help/C/genius.xml: Fixes from Anders Jonsson and some new extra
links
ChangeLog | 5 +++++
help/C/genius.xml | 32 +++++++++++++++++++++++++++++---
2 files changed, 34 insertions(+), 3 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index 419819b..447d1cb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Wed Apr 26 17:30:29 2017 Jiri (George) Lebl <jirka 5z com>
+
+ * help/C/genius.xml: Fixes from Anders Jonsson and some new extra
+ links
+
Tue Apr 25 13:35:12 2017 Jiri (George) Lebl <jirka 5z com>
* examples/complex-analysis-mesh.gel: forgot to define function,
diff --git a/help/C/genius.xml b/help/C/genius.xml
index b05f91b..ea1cd98 100644
--- a/help/C/genius.xml
+++ b/help/C/genius.xml
@@ -1628,7 +1628,7 @@ returns 3.
<listitem>
<para>
Logical xor.
- Returns true exactly one of
+ Returns true if exactly one of
<varname>a</varname> or <varname>b</varname> is true,
else returns false. If given numbers, nonzero numbers
are treated as true.
@@ -6849,6 +6849,10 @@ divided to make all pivots 1.</para>
<para>Get all combinations of k numbers from 1 to n as a vector of vectors.
(See also <link linkend="gel-function-NextCombination">NextCombination</link>)
</para>
+ <para>
+ See
+ <ulink url="http://en.wikipedia.org/wiki/Combination">Wikipedia</ulink> for more information.
+ </para>
</listitem>
</varlistentry>
@@ -6914,7 +6918,7 @@ divided to make all pivots 1.</para>
<listitem>
<synopsis>FrobeniusNumber (v,arg...)</synopsis>
<para>
- Calculate the Frobenius number. That is calculate smallest
+ Calculate the Frobenius number. That is calculate largest
number that cannot be given as a non-negative integer linear
combination of a given vector of non-negative integers.
The vector can be given as separate numbers or a single vector.
@@ -6922,6 +6926,7 @@ divided to make all pivots 1.</para>
</para>
<para>
See
+ <ulink url="https://en.wikipedia.org/wiki/Coin_problem">Wikipedia</ulink> or
<ulink url="http://mathworld.wolfram.com/FrobeniusNumber.html">Mathworld</ulink> for more
information.
</para>
</listitem>
@@ -6948,6 +6953,7 @@ divided to make all pivots 1.</para>
</para>
<para>
See
+ <ulink url="https://en.wikipedia.org/wiki/Greedy_algorithm">Wikipedia</ulink> or
<ulink url="http://mathworld.wolfram.com/GreedyAlgorithm.html">Mathworld</ulink> for more
information.
</para>
</listitem>
@@ -6958,7 +6964,13 @@ divided to make all pivots 1.</para>
<listitem>
<synopsis>HarmonicNumber (n,r)</synopsis>
<para>Aliases: <function>HarmonicH</function></para>
- <para>Harmonic Number, the <varname>n</varname>th harmonic number of order
<varname>r</varname>.</para>
+ <para>Harmonic Number, the <varname>n</varname>th harmonic number of order <varname>r</varname>.
+ That is, it is the sum of <userinput>1/k^r</userinput> for <varname>k</varname>
+ from 1 to n. Equivalent to <userinput>sum k = 1 to n do 1/k^r</userinput>.</para>
+ <para>
+ See
+ <ulink url="https://en.wikipedia.org/wiki/Harmonic_number">Wikipedia</ulink> for more information.
+ </para>
</listitem>
</varlistentry>
@@ -6967,6 +6979,11 @@ divided to make all pivots 1.</para>
<listitem>
<synopsis>Hofstadter (n)</synopsis>
<para>Hofstadter's function q(n) defined by q(1)=1, q(2)=1, q(n)=q(n-q(n-1))+q(n-q(n-2)).</para>
+ <para>
+ See
+ <ulink url="https://en.wikipedia.org/wiki/Hofstadter_sequence">Wikipedia</ulink> for more
information.
+ The sequence is <ulink url="https://oeis.org/A005185">A005185 in OEIS</ulink>.
+ </para>
</listitem>
</varlistentry>
@@ -7030,6 +7047,10 @@ do (
</screen>
See also <link linkend="gel-function-Combinations">Combinations</link>.
</para>
+ <para>
+ See
+ <ulink url="http://en.wikipedia.org/wiki/Combination">Wikipedia</ulink> for more information.
+ </para>
</listitem>
</varlistentry>
@@ -7768,6 +7789,7 @@ and has period <userinput>b-a</userinput>.</para>
<para>Moebius mapping of the disk to itself mapping a to 0.</para>
<para>
See
+ <ulink url="https://en.wikipedia.org/wiki/M%C3%B6bius_transformation">Wikipedia</ulink> or
<ulink url="http://planetmath.org/MobiusTransformation">Planetmath</ulink> for more information.
</para>
</listitem>
@@ -7780,6 +7802,7 @@ and has period <userinput>b-a</userinput>.</para>
<para>Moebius mapping using the cross ratio taking z2,z3,z4 to 1,0, and infinity
respectively.</para>
<para>
See
+ <ulink url="https://en.wikipedia.org/wiki/M%C3%B6bius_transformation">Wikipedia</ulink> or
<ulink url="http://planetmath.org/MobiusTransformation">Planetmath</ulink> for more information.
</para>
</listitem>
@@ -7792,6 +7815,7 @@ and has period <userinput>b-a</userinput>.</para>
<para>Moebius mapping using the cross ratio taking infinity to infinity and z2,z3 to 1 and 0
respectively.</para>
<para>
See
+ <ulink url="https://en.wikipedia.org/wiki/M%C3%B6bius_transformation">Wikipedia</ulink> or
<ulink url="http://planetmath.org/MobiusTransformation">Planetmath</ulink> for more information.
</para>
</listitem>
@@ -7804,6 +7828,7 @@ and has period <userinput>b-a</userinput>.</para>
<para>Moebius mapping using the cross ratio taking infinity to 1 and z3,z4 to 0 and infinity
respectively.</para>
<para>
See
+ <ulink url="https://en.wikipedia.org/wiki/M%C3%B6bius_transformation">Wikipedia</ulink> or
<ulink url="http://planetmath.org/MobiusTransformation">Planetmath</ulink> for more information.
</para>
</listitem>
@@ -7816,6 +7841,7 @@ and has period <userinput>b-a</userinput>.</para>
<para>Moebius mapping using the cross ratio taking infinity to 0 and z2,z4 to 1 and infinity
respectively.</para>
<para>
See
+ <ulink url="https://en.wikipedia.org/wiki/M%C3%B6bius_transformation">Wikipedia</ulink> or
<ulink url="http://planetmath.org/MobiusTransformation">Planetmath</ulink> for more information.
</para>
</listitem>
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