Here is a similar program in #Fortran -- which is NOT annoying (at least when you aren’t doing anything to fancy) --

https://rosettacode.org/wiki/Xiaolin_Wu's_line_algorithm#Fortran

#RosettaCode #math #GraphicsProgramming #ellipse #evolute

A #model of #Gale #crater, with the #landing zone of the #Mars Science Laboratory #rover, #Curiosity, which was present as a visual aide in the #NASA #Press Center. The #LandingZone is the white #ellipse.
The central peak of the crater, known as both Mount Sharp and #Aeolis #Mons, is believed to hold many clues to the past of Mars.
The crater also holds features that may be evidence of being formed by flowing, liquid water.
Curiosity landed on August 6, 2012.
#GaleCrater, #MarsRover, #MountSharp, #AeolisMons, #Photography, #Photograph, #Photo
https://heronfox.pixels.com/featured/gale-crater-model-2-heron-and-fox.html

RT @UPFbiomed
Really happy to have Mireia Vallès-Colomer (@MireiaVallesc) on board from this September! 🤗
Microbiome, here we go! 🚀🦠💫

Read about Mireia's work in this interview in #Ellipse - @the_prbb 👇🏿
https://ellipse.prbb.org/you-me-and-our-shared-microbiome/

“#Ivanka also accompanied her father to the rally of his supporters at the #Ellipse…. Hundreds of his supporters moved from there to the #Capitol, where they attacked the bldg , some chanting, ‘Hang Mike Pence!’ for his refusal to do what #Trump wished.

“#Kushner returned from the Middle East that day, ultimately going to the WH after the pro-Trump mob had been rioting for hrs.

Construction of points of a central #conic (here an #ellipse), made into a poster.

Details in my paper.

An earlier referee did wonder (before rejecting it): is it [really] art?

https://scholarship.claremont.edu/jhm/vol12/iss2/19/

In TinyUX you create wireframes based on a grid. It's a bit like paint with large pixels. You tap your buttons, icons, etc, and it merges them to create larger shapes.

Now adding that text won't overflow the shapes. Will be in next version later this week.

Feature requests? Let me know!

https://tinyux.app

#UXtools #TinyUX #wireframing #app #UXD #ellipse #buttons #Wireframes #uxdesign #uxui #ux

In TinyUX you create wireframes based on a grid. It's a bit like paint with large pixels. You tap your buttons, icons, etc. And it merges the buttons/etc to create larger shapes.

Now making the improvement so text will be cut if it wouldn't fit the button.

https://TinyUX.app

#UXtools #TinyUX #wireframing #app #UXD #ellipse #buttons #Wireframes

End of holidays idleness: getting #Stata to simulate elliptical orbits. Code in the image description.

Example:
. ellipse
. ellipse, niter(300) dy(2)
. ellipse, niter(300) dy(1) accel(0.5)

#ellipse #simulation

@nixCraft Hmmm…. It’s not a circle, it’s an #ellipse, and the correct term is #orbit. What does that tell us about that picture? 🤔

fun fact! if you make a series of concentric ellipses that rotate at a constant rate about the midpoint of the foci, you can easily fake a spiral galaxy type structure that runs in linear time (a typical n-body solver runs in O(n^2) or at best O(n log n) time)
The full equation for such an ellipse is as follows:
r = (b²h cosθ cos(φ-θ) + b²k cos(φ-θ) sinθ - ha² sinθ sin(φ-θ) + a²k cosθ sin(φ-θ) ± sqrt( -2b²h²a² cosθ cos(φ-θ) sinθ sin(φ-θ) + 2b²ha²k (cosθ)² cos(φ-θ) sin(φ-θ) - 2b²ha²k cos(φ-θ) (sinθ)² sin(φ-θ) + 2b²a²k² cosθ cos(φ-θ) sinθ sin(φ-θ) - b²h²a² (cos(φ-θ))² (sinθ)² + 2b²ha²k cosθ (cos(φ-θ))² sinθ - b²a²k² (cosθ)² (cos(φ-θ))² - b²h²a² (cosθ)² (sin(φ-θ))² - 2b²ha²k cosθ sinθ (sin(φ-θ))² - b²a²k² (sinθ)² (sin(φ-θ))² + b⁴a² (cos(φ-θ))² + b²a⁴ (sin(φ-θ))²) ) / b²(cos(φ-θ))² + a²(sin(φ-θ))²
don't ask me how to translate that into code, i'm not sure how i did it myself. you are not limited to 2 armed galaxies tho, and with the right settings can create arbitrarily complex fakes. this does not simulate gravitational forces, and is just a cheapo cheat on keplerian laws of orbits.
#math #gamedev #generativeart #coding #ellipse #geometry #indiedev #indiegamedev #astronomy #physics #astrophysics #cosmology

My wife was looking at the properties of #ellipses such as the one where the sum of the distance of all points on the #ellipse from the two foci are the same and how that relates to the standard equation of an ellipse. I wrote these notes up neatly using #LaTeX to explain the relationship.

To put it up here, I converted the #PostScript pages to #PNG format using #GNU #Gimp and the figure was produced using #Tgif.

#Mathematics #Geometry #TwoDimensional #PlaneCurve #CartesianCoordinates #CCBYSA

Penrose Unilluminable Room Is Impossible to Light in every place at once: https://www.youtube.com/watch?v=x3VluzZTReE #penrose #physics #light #ellipse #properties

His First Law says that planets orbit the Sun in an #ellipse with the Sun at one #focus. Of course, a circle can be thought of as an ellipse where the two #foci have coalesced into one point (zero eccentricity). Here is what the orbit would look like in that case. The angular velocity of the planet is constant in this case and the areas swept out in equal times are identical.

Need to calculate circumference of that ellipse but you're deadly scared of Big Bad Integrals? Here's a surprisingly good approximation formula that will give you the answer with an error <0.00001% for eccentrities below 0.8:

#maths #ellipse #circumference #perimeter

#franceinfo #Société "Un livre d'histoire destiné aux étudiants pointé du doigt pour conspirationnisme" #éducation #histoire #11septembre #11septembre2001 #CIA #conspirationisme #Ellipse #Clionautes ... https://www.francetvinfo.fr/societe/education/un-livre-d-histoire-destine-aux-etudiants-pointe-du-doigt-pour-conspirationnisme_3793795.html