From 22ff1db8a76c7047b61a424ae1fa5f43697fcb34 Mon Sep 17 00:00:00 2001
From: Marti Bolivar <mbolivar@mit.edu>
Date: Wed, 20 Oct 2010 06:46:52 -0400
Subject: initial check-in of arduino docs in RST format (converted using
 wget+pandoc)

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 docs/source/arduino/randomseed.rst | 70 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 docs/source/arduino/randomseed.rst

(limited to 'docs/source/arduino/randomseed.rst')

diff --git a/docs/source/arduino/randomseed.rst b/docs/source/arduino/randomseed.rst
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+.. _arduino-randomseed:
+
+randomSeed(seed)
+================
+
+Description
+-----------
+
+randomSeed() initializes the pseudo-random number generator,
+causing it to start at an arbitrary point in its random sequence.
+This sequence, while very long, and random, is always the same.
+
+
+
+If it is important for a sequence of values generated by random()
+to differ, on subsequent executions of a sketch, use randomSeed()
+to initialize the random number generator with a fairly random
+input, such as analogRead() on an unconnected pin.
+
+
+
+Conversely, it can occasionally be useful to use pseudo-random
+sequences that repeat exactly. This can be accomplished by calling
+randomSeed() with a fixed number, before starting the random
+sequence.
+
+
+
+Parameters
+----------
+
+long, int - pass a number to generate the seed.
+
+
+
+Returns
+-------
+
+no returns
+
+
+
+Example
+-------
+
+::
+
+    long randNumber;
+    
+    void setup(){
+      Serial.begin(9600);
+      randomSeed(analogRead(0));
+    }
+    
+    void loop(){
+      randNumber = random(300);
+      Serial.println(randNumber);
+    
+      delay(50);
+    }
+
+
+
+See also
+--------
+
+
+-  `random <http://arduino.cc/en/Reference/Random>`_
+
+
-- 
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