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seen Aug 13 at 22:27

Mar
27
comment What all all possible summes that yeild number N called
My next question was going to be is there any relation to Primes and Partitions -- just saw there is a lot of work in that area :-) -- I wish I had majored in Math.
Mar
27
comment What all all possible summes that yeild number N called
do you want to post this as an Answer -- I'll accept it
Mar
9
comment Understanding a plot of composite numbers against the ordinal position of their prime factors
Many thanks for the answer Robert -- I'll comeback and try to digest the answer in a bit -- you have to forgive me my math brain cells have been receding for a while
Mar
9
comment Understanding a plot of composite numbers against the ordinal position of their prime factors
@RobertIsrael -- yes to " 5, 35 and 52, not 11, 140 and 229?" -- I just realized my question text was wrong -- corrected -- thanks
Mar
9
comment Understanding a plot of composite numbers against the ordinal position of their prime factors
@RobertIsrael so the y axis the the order of the prime like 2 is 1, 3, is 2, ..., 11 is 5, 149 is 35, etc. -- I'll update the question with this clarificaiton
Mar
9
comment Understanding a plot of composite numbers against the ordinal position of their prime factors
Hi @RobertIsrael, I was trying to get the lines to be as linear as possible so I was trying to pick a ration and I tried E/PI and it seemed to get me the most linear graph.
Mar
3
comment Ulam's Spiral in multiple dimensions
@RossMillikan, I'd be happy with any one -- I guess the property that I'd like to maintain is that the length of the spiral's arms in 3D space increase monotonically like the do in 2D space
Mar
3
comment Ulam's Spiral in multiple dimensions
@RossMillikan -- I'm not sure how to continue (or even if it is possible) to continue the spiral beyond f(8) -> <x=-1,y=0,z=1>
Mar
3
comment Ulam's Spiral in multiple dimensions
@RossMillikan -- sorry about that - correcting -- give me a few minutes
Mar
3
comment Ulam's Spiral in multiple dimensions
@ErickWong, I've tried to capture what I think would be the first 8 steps of the spiral in 3 dimensions - not sure if this helps
Mar
3
comment Ulam's Spiral in multiple dimensions
@ErickWong -- I think I see your point -- you have to forgive me as I'm not a trained mathematician -- let me think some
Mar
3
comment Ulam's Spiral in multiple dimensions
@JackM -- I updated my question which I hope will help clarify it a bit.
Mar
3
comment Ulam's Spiral in multiple dimensions
Mmm, the a good questions -- I'm not entirely sure -- put one that seems to be a natural extension of the 2D one into 3D -- without the primes. I'll place the primes of the spiral's arms. So I need a f(step) --> <x1, x2, ..., xN>
Feb
8
comment Using Prime numbers to map n integers uniquely to an integer x and allowing an easy reverse mapping
mmm good point. I'll do that in a bit.
Feb
8
comment Using Prime numbers to map n integers uniquely to an integer x and allowing an easy reverse mapping
well yeah that's where the idea grew from, if you mean RSA
Feb
8
comment Using Prime numbers to map n integers uniquely to an integer x and allowing an easy reverse mapping
@Ethan I've edited my LaTeX, is the question any clearer now?
Feb
8
comment Using Prime numbers to map n integers uniquely to an integer x and allowing an easy reverse mapping
Researching LateX ... so will tidy it up
Feb
8
comment Using Prime numbers to map n integers uniquely to an integer x and allowing an easy reverse mapping
I want the function to take n integers, say 5, 6 and 21 and give me one number, say X. The caveat being that there should be simple reverse function that will take X and give me 5, 6, 21
Feb
8
comment Using Prime numbers to map n integers uniquely to an integer x and allowing an easy reverse mapping
Hmmmm, sorry about that, my latex is rather week but I'll try
Jan
25
comment How many combinations of 20 balls can be drawn from a bag of 10 blue balls and a bag of 10 red balls
Hi, no not homework. Though I was thinking of opening the textbooks of my youth. How much my mind has decayed!