Function plots in Inkscape. Why would you want to plot a mathematical function using a drawing package like Inkscape rather than a mathematical package like Mathematica or R? One reason is that you may want plot for its visual properties. For example, you might want to include a sine wave in a drawing. Another reason is that you may want to have more control (or at least easier control) over your plot. Mathematical packages make it easy to produce a basic plot with default options. But I’ve found it difficult to change the aesthetics of a plot in every mathematical package I’ve used.
The things I want to do are often possible but require arcane options that I have trouble remembering. In a drawing program, it’s obvious how to manipulate a plot as an image. Inkscape provides a couple extensions to include function plots in a drawing. The first time I tried using these extensions nothing happened. The Function Plotter supports rectangular and polar coordinates. H4IMoLh.gif (GIF Image, 320 × 225 pixels) Prof. M. S. Moslehian's Homepage. Insane Coding. Problem A common issue when dealing with a custom object or any kind of data is to create some sort of save functionality with it, perhaps writing some text or binary to a file.
So what is the correct C++ method to allow an object to save its data anywhere? An initial approach to allow some custom object to be able to save its data to a file is to create a member function like so: void save(const char *filename); While this is perfectly reasonable, what if I want something more advanced than that? Naive Approach When C++ programmers hear the initial set of requirements, they generally look to one of two solutions: The first is to allow for a save function which can take an std::ostream, like so: void save(std::ostream &stream); C++ out of the box offers std::cout as an instance of an std::ostream which writes to the screen. With these options, you can display the data on the screen, save it to an actual file, or save it to a string, which you can then in turn save it wherever you want. Solution. Michael Hirsch. Using harpoon vector symbol in LaTeX April 9, 2014 at 20:33 My favorite vector symbol is a harpoon, but the harpoon package defaults to text mode, which will fail when math characters like \ell are used in the math mode.
To fix this, in your document header put: \usepackage{harpoon} \newcommand*{\vect}[1]{\overrightharp{\ensuremath{#1}}} then $\vect{d\ell}$ will work. reference: Manually putting external USB drives into standby April 9, 2014 at 18:38 You can manually put a USB HDD that doesn’t automatically spin-down after inactivity to sleep with the following command: sg_start 0 --pc=3 /dev/sdc where I assumed your HDD was at /dev/sdc. The HDD should automatically spring back to active spinning mode when you write a file to it, etc. The reason you might want to do this include that the HDDs put out some substantial heat when they’re not spun down. Using Phoronix Test Suite 5 April 9, 2014 at 16:23. Feed Lots. IMAGE: “Coronado Feeders, Dalhart, Texas” (2013), Mishka Henner (archival pigment print, 102x122cm). British photographer Mishka Henner’s most recent work shows the astonishing and terrible beauty of two of Texas’s most valuable landscapes — its feedlots and its oilfields — from above.
IMAGE: “Coronado Feeders, Dalhart, Texas” (2013), Mishka Henner (detail). Even more astonishingly, the aerial imagery from which these works were composed is entirely shot by machine. Henner compiled hundreds of publicly available satellite photographs of his chosen sites, knitting them seamlessly together to create ultra-high definition images that, according to those lucky enough to have seen them in person, look, at first glance, like Abstract Expressionist paintings. IMAGE: “Tascosa Feedlot, Texas” (2013), Mishka Henner (archival pigment print, 102x102cm). Digestion at such an industrial scale produces equally colossal amounts of manure. IMAGE: “Tascosa Feedlot, Texas” (2013), Mishka Henner (detail). Łukasz Łuczaj - Podręcznik robakożercy. Incredible Once In A Lifetime Shots. Bare bones treasure chest w/ secret whiskey compartment. Malagasy wants to connect with you on Pearltrees - marekgluza - Gmail.
Lecture Notes Claus Gerhardt. Below are a few lecture notes of mine, either scanned pdf images of handwritten notes or pdflatex produced files, that are mainly aimed at my students. The notes are either in German or in English, those written in German are marked as such. Abstract eigenvalue problems with applications to the eigenfunctions of the Laplace operator in compact manifolds, especially the sphere, spherical harmonics.
(German, pdf) Closed, immersed, umbilic hypersurfaces in Euclidean space are spheres. (pdf) Short time existence of parabolic fully nonlinear equations with Dirichlet boundary conditions. (German, pdf) Short time existence of parabolic fully nonlinear equations with Neumann boundary conditions. Home page, Flashmode, TEXHelpers, TEX Switcher, pdfselect, TEXScripts, Books, Preprints, Former Students, Veranstaltungen, LectureNotes. AeroVelo. Zenhabits. Ulric Collette | Portraits génétiques. Reaction-Diffusion Images. Images generated from Gray-Scott reaction-diffusion simulations, by Karl Sims Back to Karl Sims homepage.
Jeff Clune - Assistant Professor - Computer Science - University of Wyoming. Subscribe to be notified of future videos Overview of the EvolvingAI lab. Evolving neural networks (digital brains) to control how robots walk. Why do modules evolve in biological networks? In this video we show that the presence of a cost for network connections leads to the evolution of modules and increases performance. This discovery helps answer a biological mystery and provides a boost to artificial intelligence research, because it provides a technique for evolving modular artificial neural networks. Evolving soft robots with multiple-materials and a generative encoding based on developmental biology. EndlessForms.com: Design objects with evolution and 3D print them! A summary of my recent research into evolving neural networks that have the properties of regularity (e.g. symmetries and repeated structures) and modularity (e.g. neural modules).
Harlem shake: evolutionary robotics edition. Aracna: An open-source, 3D printed robot for testing artificial intelligence algorithms. Why ride a velomobile? Reason #1 - Aerodynamics Why does a cyclist on a racing bike work so hard to maintain a low, compact riding position? The answer is, of course, that he or she is trying to achieve the most aerodynamic position possible. The amount of energy you expend fighting air resistance increases exponentially with speed and a cyclist has a limited amount of power to work with. If you want to travel faster for the same amount of energy, then you need to decrease your air resistance and become more aerodynamic.
Standard bike Racing bike Quest velomobile Power required to travel 30 km/h 271 Watts 137 Watts 79 Watts Speed on flat road 100 Watts 20.5 km/h 27 km/h 34 km/h 250 Watts 29 km/h 37.5 km/h 50 km/h Speed on 5% uphill 150 Watts 9.7 km/h 11.6 km/h 9 km/h Speed on 2% downhill 100 Watts 29.5 km/h 38.5 km/h 63.8 km/h Source: Van de Walle, F., The velomobile as a vehicle for more sustainable transportation Reason #2 - Comfort Reason #3 - Weather protection Reason #4 - It's just so much fun.
Publikacje. Notes_v2.dvi - Hydro_astroMHD.pdf. Fryderyk Chopin - dzieła wszystkie. Publikationen.