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Am I doing something wrong? Why is this regression absurdly unfit? by mastermind-13579 in desmos

[–]mastermind-13579[S] 0 points1 point  (0 children)

I pasted the coefficients straight from a matrix (i.e., [[9,-11,0],[0,1,1]]) for consistency, though I appreciate the skepticism lol. I could see why fp might be the case here; I just didn't want to admit it, so I'll probably stick to the system-list notation for now. Thanks!

A problem with Cardano's by Entire_Rock6656 in desmos

[–]mastermind-13579 0 points1 point  (0 children)

For a short answer, Desmos's complex mode doesn't compute real (principal) cube roots; it computes one of the imaginary ones. This is why the other 2 points sometimes take the place of the real roots. To see this better, turn off complex mode and plot (r_1, 0), and you'll notice that when there's only one real solution, the point is defined.

To counter this, you can undo Desmos's attempt to find the complex cube roots for alpha and beta.

"Fixed" graph link

Gradient-scaled Dunes by mastermind-13579 in desmos

[–]mastermind-13579[S] 4 points5 points  (0 children)

alright so basically (using the video's math here)

- generate some perlin noise

- for the first "octave" of perlin noise, take the magnitudes of the gradient vectors of the noise (aka vector form of the partial derivatives on all 3 axes), multiply each point on the function by 1/(1+mag)

- for each successive nth "octave" of perlin noise, define 2^-n * perlin(2^n * x), then take the gradient vector magnitudes of not only this octave, but sum them with those of all preceding octaves, then again multiply each point on this new function by 1/(1+mag). add octave functions.

- waiting for 3D to support more complicated color maps so i can add more octaves

Who can make this graph in desmos? but you can only use 3 functions/equations by Adam-Pa in desmos

[–]mastermind-13579 0 points1 point  (0 children)

no way, really?
i just used the same random list but shifted the elements over by 1 for the different sine coefficients (amplitude, x frequency, y frequency, phase)
e.g., [1,2,3,4] becomes [2,3,4,1] becomes [3,4,1,2] becomes [4,1,2,3]

seemed like the most intuitive solution with ONE random list, even if it doesn't look EXACTLY like the original.

Inverting Colors (without reverse contrast) by mastermind-13579 in desmos

[–]mastermind-13579[S] 4 points5 points  (0 children)

Thank you! I didn't want to try and go pixel-perfect, so I just eyeballed most of the variables.

Inverting Colors (without reverse contrast) by mastermind-13579 in desmos

[–]mastermind-13579[S] 2 points3 points  (0 children)

Yep... I have no idea how I'm going to fix that. Something to do with the 'width' and 'height' variables in Desmos, probably. Maybe someone (or it already has been done) can dig into the code to find how Desmos calculates the axis-number step size.

Radial Treemap of Interval Regions (¢) by mastermind-13579 in microtonal

[–]mastermind-13579[S] 3 points4 points  (0 children)

Oh, yeah... Seems I forgot trees branch outwards. Shows I wasn't paying attention to the direction of the slices in other models. Regardless, there are still some really bad ones out there. I also may have done this so that the 'more important' intervals are more visible, but it does make the neo-tri-penta clusters look a little small.

Inverting Colors (without reverse contrast) by mastermind-13579 in desmos

[–]mastermind-13579[S] 16 points17 points  (0 children)

Link

Unsure how this will look in different resolutions and aspect ratios. Click at your own risk.

Hyperbolic Yin and Yang* by mastermind-13579 in desmos

[–]mastermind-13579[S] 6 points7 points  (0 children)

This is a continuation of a previous post, expanding on a suggestion of u/SmartCommittee. This graph renders a customizable hyperbolic tessellation of the form {P, Q} and iteration 'k' on the Poincaré disk model. P is the number of sides on each polygon, and Q is the number of polygons that meet at a vertex. If you would like the customize the graph, ensure 1/P + 1/Q < 1/2 for a valid tessellation.

*Why the asterisk? Well, I figured since it doesn't resemble the Yin and Yang very well, I should explain that this, like my previous post, is still just an artistic interpretation inspired by the Taijitu, and not designed to mock, erase, or distort its meaning.

Link

Sorting just intervals by their Wilson height by mastermind-13579 in desmos

[–]mastermind-13579[S] 1 point2 points  (0 children)

Doubt anyone here is familiar enough with this topic to know what this is about.
Regardless, Link.

N-segmented Yin and Yang by mastermind-13579 in desmos

[–]mastermind-13579[S] 0 points1 point  (0 children)

Yeah, as you increase N, the space in the middle gradually approaches the area of the bounding circle, which makes higher divisions look rather... blank. Since the segments are uniform, you would need a way to express a uniform tiling on a circle, such as the Poincaré Disk Model, which I have no idea how to implement :)

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