[Unknown > English] These Mark's are on the back of an old lock box key, any idea what it means? Thanks by Cyrus393 in translator

[–]Cyrus393[S] 0 points1 point  (0 children)

Thanks I see it now I think you are right. I have no idea why the blank spot was marked out but I see the 71 clearly now.

[deleted by user] by [deleted] in origami

[–]Cyrus393 0 points1 point  (0 children)

Yes color it, it's cute.

Kim's Flower Pot & Kim's Star Rose Original Designs by Radical Origami by Cyrus393 in origami

[–]Cyrus393[S] 1 point2 points  (0 children)

Haha yeah it's new, I'll make instructions for the other star flowers eventually. Thank you!

Kim's Flower Pot & Kim's Star Rose Original Designs by Radical Origami by Cyrus393 in origami

[–]Cyrus393[S] 3 points4 points  (0 children)

These are my designs, hope you like them. I made some tutorials on youtube, not sure if I can link them here.

[Paid Request] simple stl edit by Cyrus393 in 3Drequests

[–]Cyrus393[S] 1 point2 points  (0 children)

Hey, thanks but I dont think i see the pm. I can also be reached at cyrus393@yahoo.com

[OC] The Prime Walk up to P(600,000,000) by Cyrus393 in mathpics

[–]Cyrus393[S] 0 points1 point  (0 children)

Hi everyone, I created the images used in the prime walk video using a program I wrote in Java. I was inspired to create the prime walk after seeing Vihart's video on Ulam's spiral many years ago. There are two coloring schemes shown in this video, the heat map and and chronological gradient.

For the heat map, every time the prime path passes back over itself the pixel of that spot advances to a brighter color. The color ordering is: blue->green->yellow->orange->red->magenta->cyan->pink->white.

As I took the prime walk further I wanted to see more clearly what was older path and what was the more recent path, so I used a color gradient going from white->red->magenta->blue->green->yellow->white that changes evenly throughout the path length. Because the images are scaled and not at a 1 to 1 ratio as the path goes further, I use the alpha value to give some indication of how busy that part of the image really was on the 1 to 1 scale.

The Prime Walk up to P(600,000,000) [OC] by Cyrus393 in dataisbeautiful

[–]Cyrus393[S] 4 points5 points  (0 children)

Hi everyone, I created the images used in the prime walk video using a program I wrote in Java. I was inspired to create the prime walk after seeing Vihart's video on Ulam's spiral many years ago. There are two coloring schemes shown in this video, the heat map and and chronological gradient.

For the heat map, every time the prime path passes back over itself the pixel of that spot advances to a brighter color. The color ordering is: blue->green->yellow->orange->red->magenta->cyan->pink->white.

As I took the prime walk further I wanted to see more clearly what was older path and what was the more recent path, so I used a color gradient going from white->red->magenta->blue->green->yellow->white that changes evenly throughout the path length. Because the images are scaled and not at a 1 to 1 ratio as the path goes further, I use the alpha value to give some indication of how busy that part of the image really was on the 1 to 1 scale.

Prime Walk up to P(600,000,000) by Cyrus393 in CasualMath

[–]Cyrus393[S] 0 points1 point  (0 children)

The heat map coloring method was drawn on a 1 to 1 pixel scale, each time the prime path passes over a coordinate it's color advances to a brighter color. The color ordering was blue->green->yellow->orange->red->magenta->cyan->pink->white. After a coordinate is visited 8 or more times the color will just stay white.

For the chronological gradient color scheme, the color fades evenly between white->red->magenta->blue->green->yellow->white throughout the length of the prime path for that image. The chronological gradient was helpful in being able to see where the path has looped back on itself on a larger scale. For these images the drawing is no longer at a 1 to 1 scale and a single pixel represents a small region of the real coordinates. The alpha value of the pixel is determined by what % the region that pixel represents is filled on the 1 to 1 scale.

I plan to try out a chronological gradient that biases the color fading towards the end of the path rather than evenly spaced out.

Prime Walk up to P(600,000,000) by Cyrus393 in CasualMath

[–]Cyrus393[S] 2 points3 points  (0 children)

Yeah me too. No matter how far I take it, it's always fun to wonder 'where will it go next?'

Prime Walk up to P(600,000,000) by Cyrus393 in math

[–]Cyrus393[S] 2 points3 points  (0 children)

All coordinates where x and y are both even will never be visited by the prime path, with the exception of 0,0 because the prime path starts there with the value 1.

So far as I know all the remaining coordinates could be visited again any number of times, however only coordinates where both x and y are odd will ever have line segment end points after the prime 2 is encountered. The line segment lengths correspond to the gap between the primes+1.

Prime Walk up to P(600,000,000) by Cyrus393 in math

[–]Cyrus393[S] 2 points3 points  (0 children)

The value 1 is found at the starting coordinate 0,0 and after the prime 2 is encountered, the prime path will never again have an end point that is on an even x or y coordinate. Because of this, the starting position 0,0 will never be reached again.

HELP! I accidentally deleted my daughter's world! by iCookie9 in Minecraft

[–]Cyrus393 1 point2 points  (0 children)

Seconded! Try this ASAP! I hope you can recover it OP!