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battlecoder / rand-period-test.c
Last active Dec 31, 2017 — forked from unprovable/rand-period-test.c
Random Periodicity Test Code for arduino (compiled in Arduino IDE)
View rand-period-test.c
* Test sketch based on rand-period-test.c by @unprovable
* His sketch shown an anomaly with Arduino's PRNG, in which the LCG period seems to be unreliable.
* Also the function seems to be quite slow; iterating over the stream until we get back to the beginning
* takes 199340888ms (55.3724689 hours). It takes 1.5 minutes (approx) to generate 1M numbers.
* So I decided to repeat the test with a textbook implementation of a standard LCG to see if we can get a
* reliable generator with a stable period (and hopefully faster runtime) under the same conditions.
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