Recent content by Mr Peanut

Here's a final summary of the project: http://www.codeproject.com/Articles/795845/Arduino-Hardware-Random-Sequence-Generator-with-Ja I felt that this link should be in the thread for future interest.

For example: http://sanchezdavid.files.wordpress.com/2010/08/circuits-ii-term-paper-final.pdf Attributes it to shot noise. Here's on that says it avalanche noise: http://web.jfet.org/hw-rng.html

I frequently see the following circuit being used as a noise generator: ... where the transistors are basic npn bipolar transistors. Some authors attribute the noise to shot noise while others say it is avalanche noise. How do I determine which is correct?

OK, after a bit of grinding, here's what I have: Part of the problem had to do with the way Java (my preferred language) interprets bytes. They are signed. With that resolved... In his discussion of the serial correlation coefficient, John Walker references: Knuth, Donald E. The Art of...

Hi, I truncated the double precision number to 6 places. Here another dataset's results: ENT serial correlation: 0.009772 My approach: 0.0033341683347135162 0.003334

I have a byte array of length 16384 bytes obtained from random.org/bytes. There is a random number sequence test program available from http://www.fourmilab.ch/random/ that, when run on my byte array, returns the following: Entropy = 7.989469 bits per byte. Optimum compression would reduce...

Thanks Chogg, Back to the circuit board for me. Bitwise seems to be the way to go.

Noise from a reversed biased diode has a Gaussian PDF. In my experiments, the AC voltage leaving a reverse-biased zener sub-circuit is ~5 mA. An oscilloscope monitoring the output shows a promising fuzz. I amplify the signal using a 2-stage amplifier that magnifies the signal by ~500X and...

Hello, From an offset zener diode breakdown circuit, I have collected a set of bytes from an ADC. The values distribute normally as integers between 0 and 1024 with a mean of 512. I would like to use the data to create a set of random integers that distribute uniformly. So far, I have...

Perhaps... The notion of a point is more often an undefined entity in geometry, an axiomatic primitive that has no meaning beyond the intuitive. Any rigorous definition results in a circular arguments. While a point may be designated with any number of dimensions depending on the space...

Say I have two 5-dimensional bubbles moving towards one another in 5-dimensional space. When they touch, at the monent they touch, they meet at a 3-dimensional "point." As they join, the 4-dimensional hyperplane created their by common boundary immediately inflates from that point and expands...

There is a paradox with one apparent explanation that implies a beginning. Consider that at every point-line-of-sight you examine in the sky has a star somewhere within it's path (and always has had one at some time in the universe's past). Why then is the sky not completely illuminated? One...

Given A(m,n), eps = Machine Epsilon, fNorm = FrobeniusNorm(A), p >= 1 To filter noise near zero created by floating point error: if (|Aij| < fNorm * eps *p) Aij =0 end if Seem reasonable?

Math name for "asymetric-pair" relationship? Say I have a function (F) that takes an input (P) and returns an output (E). Suppose F isn't invertible so, knowing F and E, one could not reconstruct P. Suppose also that there is another function (R) that can take E as input and returns P...

I have a hexadecimal number: 0x83 I need to determine 0x83^11 mod 15. Where the 11 and 15 are decimal. I figured 0x83 = 131 decimal. 131^11 = 194977389846841709335931. 194977389846841709335931 mod 15 = 11 11 = 0x0b Does that seem right?