How to generate a random number with uniform distribution in the interval (0, 1) in standard C? Is there a ready-made fu

小胖子

How to generate a random number with uniform distribution in the interval (0, 1) in standard C? Is there a ready-made function? !! !! !!

ubuntu

double myRand () {
      return (double) ((double) rand () / ((double) RAND_MAX + 1) * 1);
}

qingclie

Almost enough
No real random

sea0205

Evenly distributed. . ?

squallxuk

double frandom () / * creat random numbers from 0 to 1 * /
{

return (double) rand () / (RAND_MAX + 1);
}

keeraw

rand ()% 2

小胖子

Thank you, but the randomness seems to be bad, too dense

joyoyj

Almost enough
No real random

Yes

yoh2006

Since it is random, "dense" is a matter of course
It’s as if you drag 100 people on the road at random, and their birthdays will also show a “dense” distribution
The chances of these 100 people's birthdays happening to be "evenly" distributed are quite small

michael9633

Since random is inherently without rules, dense and normal