First, just to give a visual idea of what I'm after, here's the closest result (yet not exactly what I'm after) image that I've found: Here's the entire site-reference: http://www.mathematische-...

A friend was in need of an algorithm that would let him loop through the elements of an NxM matrix (N and M are odd). I came up with a solution, but I wanted to see if my fellow SO'ers could come u...

This is for an iPad application, but it is essentially a math question. I need to draw a circular arc of varying (monotonically increasing) line width. At the beginning of the curve, it would have...

I am preparing for an interview and have been stuck on this question for quite some time now. Could anybody please help me with the code. If not complete then may be a snippet of it? Please..

I'm trying to fill an array in spiral order. So far, I can print the array in spiral order, but is there a way to modify the array so that i can fill it in spiral order and then just print the arra...

The map format OpenDrive, provides (among others) the geometry of a road. Each segment of the road can have a different geometry (e.g. line, arc, spiral, polynomial). The provided information for a...

I want to plot various spirals like the ones shown in the Figure (one spiral inner the others). Let's say I have three spirals (S1, S2 and S3) and I want to fill the area between consecutive spiral...

I need an algorithm to calculate the distribution of points on a spiral path. The input parameters of this algorithm should be: Width of the loop (distance from the innermost loop) Fixed distanc...

I'd like to create a bar plot on an Archimedean spiral, like discussed here. With an end goal of something like this, but less overwhelming. Here's a sample dataframe: test <- structure(list...

How do you draw a swirl in R ? I am trying to plot a list of numbers 1:100 and every 7th number assign it a factor '1' all others just '0' . I also have a vector of TRUE or FALSE . How do I plot a ...

What is an algorithm to get the nth element of a rectangular tiled spiral? Here is n: [ 20 ][ 21 ][ 22 ][ 23 ][ 24 ] [ 19 ][ 6 ][ 7 ][ 8 ][ 9 ] [ 18 ][ 5 ][ 0 ][ 1 ][ 10 ] [ 17 ][ 4 ][ 3 ][ 2 ][ ...

I currently have a MATLAB program which takes RGB images of traced spiral arms from galaxies and selects the biggest arm component and plots only that. I have tried using matlab's built in curv...

import java.io.*; import java.awt.*; // Logarithmic spiral example public class Spiral extends Frame {// The spiral consists of n line segments. Line segment 1 // has starting point (hc, vc). Line...

I am trying to draw a spiral raster example (link) on a server (running Node.js). However, I am facing an issue where my path is not displayed on the exported frame and I can only see the downloade...

I have a list of coordinate to be sorted with a spiral algorithm. My need is to start on the middle of the area and "touch" any coordinate. To simplify this is the representation of the (unsorted)...

I'm looking to loop through a matrix similar to Looping in a spiral but looping outside-in, instead of inside-out. Can anyone help me with a good way to do this for a matrix of any size, ideally in...

i wanted ask if there some algorithm ready, that allowed me to do this: i have a matrix m (col) x n (row) with m x n elements. I want give position to this element starting from center and rotating...

I wanted to build a spiral square matrix using recursion. I am able to build spiral square matrix using iterative method as below: void main() { int initial_direction = UP , n = MAX , p = 1 ; ...

I want to make a function that I give it a number and the function returns a spiral from 1 to that number(in 2 dimensional array). For example if I give the number 25 to the function it will ...

Given an n by n matrix M, at row i and column j, I'd like to iterate over all the neighboring values in a circular spiral. The point of doing this is to test some function, f, which depends on M,...

What's more appropriate than a Spiral for Easter Code Golf sessions? Well, I guess almost anything. The Challenge The shortest code by character count to display a nice ASCII Spiral made of...