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| Thanks! I just fixed the code (which was corrupted by a Wolfram Community bug), and of course you're quite right that it is 4 periods, not 5. |
| Some were `Pi` and some were `\[Theta]`. This is a Wolfram Community bug that seems to occasionally replace special characters with question marks. I think I just fixed it, but let me know if there are still problems. |
| One issue is that `"Hexagon"` is not a pre-defined texture. You'll need to make your own hexagon image that you want to use as a texture. For example, this code: hex = With[{t = 0., cols = RGBColor /@ {"#7696DB", "#562D7D"}}, ... |
| Thanks, this is great! |
| ![Conformal image of parallel lines][1] ![Conformal image of parallel lines][2] **Rise** This is basically the same setup as [_Vanishing Point_][3] and [_:eyes:_][4], conformally mapping an infinite strip into the region between two circles,... |
| ![Conformal image of a vertical grid][1] **Vanishing Point** This is essentially the same setup as [:eyes:][2]: the map $f(z) = \frac{-4i}{z}$ maps the infinite strip $\{z \in \mathbb{C} : 1 \leq \operatorname{Re}(z) \leq 2\}$ to the region... |
| ![Minimum-stick 9-crossing knots][1] **Nines** In our paper ["New stick number bounds from random sampling of confined polygons"][2], my graduate student Thomas D. Eddy and I found many examples of polygonal knots made with fewer edges than... |
| ![Inverse Cayley transform of rotating grid of circles][1] **Rotation Redux** A [recent post by Dave Whyte (a.k.a. @beesandbombs)][2] on Twitter reminded me of my old GIF [_Rotation_][3], which is almost 5 years old (and dates back to before I... |
| ![Fourth power of a square grid in the complex plane][1] **Fourth Power** Continuing the series of conformal transformations ([1][2], [2][3], [3][4]). The first part shows a square grid in the first quadrant under the transformation $z \mapsto... |
| ![Conformal map of upper half-plane to triangle][1] :christmas_tree: The [Schwarz–Christoffel mappings][2] are conformal transformations from the upper half-plane (or unit disk) to convex polygons; the existence of such maps is guaranteed by... |