How to generate random number each time?

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Javascript generate random unique number every time

Ok so i need to create four randomly generated numbers between 1-10 and they cannot be the same. so my thought is to add each number to an array but how can I check to see if the number is in the array, and if it is, re-generate the number and if it isnt add the new number to the array? so basically it will go, 1.create new number and add to array 2.create second new number, check to see if it exist already, if it doesn't exist, add to array. If it does exist, re-create new number, check again...

Answer:

You want what is called a 'random grab bag'. Consider you have a 'bag' of numbers, each number is only...

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Other solutions

How much time do they take to generate your UID number (Aadhar Number) on website after enrollment?

I have enrolled for Aadhaar card on 02/03/2013. When could I get my Aadhaar card online so that I can have e-Aadhaar. Whenever I check my status it says "EID provided by you is still not available with us". I just want to know after how many...

Answer:

for me it is more than 5 months and now also it is not received

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Sree Krishnanandh at Quora Mark as irrelevant Undo

How would you generate a random number with in the specified limits?

I know the algorithm to generate the random numbers where you multiply, divide a unique number(say current time). But, what about in between the numbers? This is how I think can be done, do the same thing as mentioned above in an infinite loop until...

Answer:

Check out this site. Might Help You. True Random Number Service You must be signed in to read this answer...

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Sarthak Agarwal at Quora Mark as irrelevant Undo

How to generate 2 different random numbers in VB?

I just need to make two different random numbers that are not the same all the time. i have two different random number generators but they always generate the same number so there is never any variance between the player points, which is what i need...

Answer:

Without providing a seed value you will always get the same sequence of numbers when calling next()...

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Sgt at Yahoo! Answers Mark as irrelevant Undo

Isn't it impossible for a computer to randomly generate numbers?

Theoretically a computer is totally logical and therefore shouldn't be able to generate random number without a mathematical equation. But how does the equation get it's variables? I suppose this could be done with the current date, and time, spread...

Answer:

you are totally right the computer can't generate random numbers, it generates something called pseudo...

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How would I efficiently generate a random permutation?

Assume that I have a not-so-efficient standard uniform random number generator. I want an efficient algorithm, that would generate any given permutation with probability ~1/N!. (approximately is good enough). In some schemes, you would need to justify...

Answer:

First, I am assuming that we need a random permutation of N numbers 0 to N-1. If not, then we can probably...

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Natansh Verma at Quora Mark as irrelevant Undo

Infinite machines, infinite values, infinite time, same number?

Let's pretend I have an infinite number of machines that will completely randomly generate any value between -∞ and ∞. If I set them each to generate a new number every, say, second, and had them do this forever, would it ever be the case that all the...

Answer:

There is a chance. It's a 0% chance, but it's still there (I know that seems weird, but we're dealing...

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collin at Yahoo! Answers Mark as irrelevant Undo

In 6/49 lotto system:Is there a way (on excel) that I can generate 6 number combos for a set group of numbers?

I need to be able to generate all possible number combinations for a maximum of 12 numbers at any given time. Please help...

Answer:

Enter 1 to 49 in col A In B1 enter =RAND() and copy down to row 49 In C1 enter =INDEX($A:$A, MATCH(...

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Group 1A metals always have an oxidation number of +1. True or False?

10 Points for Correct Answers... 1.)Group 1A metals always have an oxidation number of +1. A.)True B.)False 2.) Oxidation-reduction reactions are reactions in which: A.)protons are transferred from one reactant to another B.)electrons are transferred...

Answer:

1.)Group 1A metals always have an oxidation number of +1. A.)True 2.) Oxidation-reduction reactions...

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No Name at Yahoo! Answers Mark as irrelevant Undo

Access Database Random Number generation

I want to generate a randomly generated number field in Microsoft Access, which will change each time a report or query is used

Answer:

Baldrick, I have a cunning plan! (sorry couldn't resist). There are two approaches you can take to...

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baldrickuk-ga at Google Answers Mark as irrelevant Undo

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