Member Avatar for knowledgelover

hi,
Thanks a lot for posting us this thread it is really valuable
But I wonder if I can make the range including negative values besides positive numbers
e.g: from -1 to 1

if you can help be I'll appreciate it
thanks again


knowledgelover

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Member Avatar for Lerner

The range from -1 to 1 is 2. So get random numbers from 0-2 (rand() % 3 should do that), then subtract 1 from that number. The results should be -1, 0 or 1. Now if you want decimal values, not integer values, ranging from -1 to 1, then a slightly different approach would be needed.

Member Avatar for knowledgelover

oh thanks again
yes I need it to be for decimal and I discovered the approach
it is like this
(2*static_cast<double>(rand())/static_cast<double>(RAND_MAX))-1
right?
it worked for me ;)

thanks again

Member Avatar for zandiago

If your problem has been solved...please mark this thread as being solved! Thx

commented: Why do you insist on posting inane crap? Instead of spamming, why don't you help someone for a change? +0
Member Avatar for Killer_Typo

you could however generate positive values and multiply by -1 :)

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