The initial seed is the same each time you start J.
?. differs on 32 and 64 bit systems, with default generator.
On Thursday, February 6, 2020, 07:21:31 a.m. EST, Arnab Chakraborty
<[email protected]> wrote:
Dear all,
For my class of about 30 students armed with JAndroid 901, I had planned to
use ?. to generate a random matrix which should be same for everybody. To
start with, I asked everybody to try
?. 100
Some got 46, others got 93. No other values. Next, someone noticed that if
they repeatedly type
? 100
then many are getting the SAME sequence of "random" numbers. Hence my
question:
1) Is there a way to produce predictable "random numbers" across different
machines (all running Jandroid 901_*, where the *'s may differ)?
2) Is there some way to get the initial seed from, say, the system time in
millisecond (or something like that)?
Thanks a lot.
Arnab.
PS: BTW, my students are loving J!
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