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  2. Fortran 90, how do I use random_number and random_seed? - Physics...

    www.physicsforums.com/threads/fortran-90-how-do-i-use-random_number-and-random...

    The random_number function in Fortran 90 allows you to generate random real numbers between 0 and 1. To use this function, you must first declare a real variable and then call the random_number function with that variable as an argument. This will assign a random value to the variable each time the program is run. 2.

  3. Can a random number generator predict the future? - Physics...

    www.physicsforums.com/threads/can-a-random-number-generator-predict-the-future...

    Feb 15, 2005. Future Generator Random Random number. In summary, Dr. Roger Nelson, an emeritus researcher at Princeton University, is leading a research project on the "black box" phenomenon which involves a box that generates random numbers and has shown to produce more 1's before significant events such as Princess Diana's death, 9/11, and ...

  4. [Fortran] Rounding up Random Numbers - Physics Forums

    www.physicsforums.com/threads/fortran-rounding-up-random-numbers.800700

    To round up random numbers in Fortran, you can use the "CEILING" function. This function takes a number as input and returns the smallest integer that is greater than or equal to that number. By using this function on a random number between 0 and 1, you can round it up to the nearest integer. 4.

  5. Creating Equal Probability Random Values with a Hardware Random...

    www.physicsforums.com/threads/creating-equal-probability-random-values-with-a...

    A hardware random number generator (RNG) is a device that generates random numbers by measuring physical processes or phenomena, such as thermal noise or radioactive decay. Unlike software-based RNGs, which use algorithms to generate pseudorandom numbers, hardware RNGs produce truly random and unpredictable values. 2.

  6. Identifying and understanding random number algorithms - Physics...

    www.physicsforums.com/threads/identifying-and-understanding-random-number...

    The. particular formula employed is r (n+1) = (a * r (n) + c) mod m where the. default values are for the multiplicand a = 0xfdeece66d = 25214903917. and the addend c = 0xb = 11. The modulo is always fixed at m = 2 ** 48. r (n) is called the seed of the random number generator.

  7. Is the Decimal Expansion of an Irrational Number Truly Random?

    www.physicsforums.com/threads/is-the-decimal-expansion-of-an-irrational-number...

    1,796. DrZoidberg said: A truly random natural process could produce any arbitrary sequence of digits. So no matter which irrational number you pick, if you select x digits from that number they could by pure coincidence look exactly the same as some subsequence of the digits produced by said natural process. Yes.

  8. How can i create a random number distribution (FORTRAN) - Physics...

    www.physicsforums.com/threads/how-can-i-create-a-random-number-distribution...

    To create a random number distribution in FORTRAN, you can use the built-in function RAND (), which generates a random real number between 0 and 1. You can then use this function in combination with other mathematical operations to create a desired distribution. 4.

  9. Random picking of 3 digit numbers - Physics Forums

    www.physicsforums.com/threads/random-picking-of-3-digit-numbers.1034880

    May 28, 2016. Numbers Random. In summary, the odds of randomly picking a 3 digit number correctly are 1000-1. The odds of that same number being picked 4 times in 364 picks are therefore 4 * 1000/364 or 0.04. May 28, 2016.

  10. Drand48() returning same random numbers each time - Physics...

    www.physicsforums.com/threads/drand48-returning-same-random-numbers-each-time...

    Drand48 () returning same random numbers each time. In summary: The program is supposed to generate random cartesian coordinates for N points in three dimensions (where N is a command-line input). When run, the code does what it is supposed to: return N points with random coordinates. However, if John runs the code again, he gets the same list ...

  11. Conditional probability - Random number of dice - Physics Forums

    www.physicsforums.com/threads/conditional-probability-random-number-of-dice.86338

    A random number N of dice is thrown. Let Ai be the event that N = i, and assume that P(Ai) = 1/(2)^i, i >= 1. The sum of the scores is S. Find the probability that: (a) S = 4, given N is even; (b) the largest number shown by any die is r, where S is unknown.