[gnome-calculator] Added round, floor, ceil and sgn to docs (bgo#748895)

[Robert Roth <robertroth src gnome org>]

commit 1bb39c450b8ad6018dfd278fd20b3c8c8dba72a7
Author: Robert Roth <robert roth off gmail com>
Date:   Tue Oct 11 15:35:00 2016 +0300

    Added round, floor, ceil and sgn to docs (bgo#748895)

 help/C/functions.page |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)
---
diff --git a/help/C/functions.page b/help/C/functions.page
index e2e3938..774b7ec 100644
--- a/help/C/functions.page
+++ b/help/C/functions.page
@@ -53,6 +53,10 @@
     <td><p><link xref="absolute">Absolute Value</link></p></td>
     </tr>
     <tr>
+    <td><p>ceil</p></td>
+    <td><p>Ceiling</p></td>
+    </tr>
+    <tr>
     <td><p>cos</p></td>
     <td><p><link xref="trigonometry">Cosine</link></p></td>
     </tr>
@@ -61,6 +65,10 @@
     <td><p><link xref="trigonometry">Hyperbolic Cosine</link></p></td>
     </tr>
     <tr>
+    <td><p>floor</p></td>
+    <td><p>Floor</p></td>
+    </tr>
+    <tr>
     <td><p>frac</p></td>
     <td><p>Fractional Component</p></td>
     </tr>
@@ -85,6 +93,14 @@
     <td><p>Ones complement</p></td>
     </tr>
     <tr>
+    <td><p>round</p></td>
+    <td><p>Round</p></td>
+    </tr>
+    <tr>
+    <td><p>sgn</p></td>
+    <td><p>Signum</p></td>
+    </tr>
+    <tr>
     <td><p>sin</p></td>
     <td><p><link xref="trigonometry">Sine</link></p></td>
     </tr>