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| author | Marti Bolivar <mbolivar@mit.edu> | 2010-11-28 11:23:33 -0500 | 
|---|---|---|
| committer | Marti Bolivar <mbolivar@mit.edu> | 2010-11-28 11:23:33 -0500 | 
| commit | 5e587be27a7c3bd854b686952a5c9637a2432ff0 (patch) | |
| tree | 09d4ceeb46f19287ee874a24516c68be90c9ad8e /docs/source/arduino/randomseed.rst | |
| parent | db4ff6ba53e9b702c77411ae19cd53d914a675de (diff) | |
| download | librambutan-5e587be27a7c3bd854b686952a5c9637a2432ff0.tar.gz librambutan-5e587be27a7c3bd854b686952a5c9637a2432ff0.zip | |
reorganized all the arduino/ docs into a lang/ subdirectory since
they're properly CC attributed now.
Diffstat (limited to 'docs/source/arduino/randomseed.rst')
| -rw-r--r-- | docs/source/arduino/randomseed.rst | 73 | 
1 files changed, 0 insertions, 73 deletions
| diff --git a/docs/source/arduino/randomseed.rst b/docs/source/arduino/randomseed.rst deleted file mode 100644 index 983c66d..0000000 --- a/docs/source/arduino/randomseed.rst +++ /dev/null @@ -1,73 +0,0 @@ -.. _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>`_ - - - - -.. include:: cc-attribution.txt
\ No newline at end of file | 
