Wolfram Computation Meets Knowledge

Date Archive: 2011 October

Computation & Analysis

Industrial Pumpkin Carving with Mathematica

The art of pumpkin carving is hard to master, yet once a year parents in many countries are asked to perform this traditional and messy form of art. It's time for a change in this old tradition. In fact, our colleague Jon McLoone already made a significant advance in pumpkin carving, mainly using implicit functions and RegionPlot3D. This year, I decided to make a contribution of my own that is more interactive and easier to use, with Mathematica or Mathematica Home Edition, of course. Let's start with a list. These are the things you need for traditional pumpkin carving. A nice looking pumpkin Carving tools of your choice: from a spoon and knife (if you are a true professional) to an industrial 36,000 rpm power rotary tool (seriously, I know someone who uses one) A bunch of candles to be placed inside the pumpkin A pattern for the carving on paper For industrial Mathematica pumpkin carving, you need these tools. B-spline curve, surface, and function Color processing functions Morphological image processing functions ParametricPlot3D with Texture A pattern for the carving as a bitmap Intrigued? Let us begin.
Education & Academic

Wavelets and Their Application in Mathematica

What do computer animation, oil exploration, and the FBI's database of 30 million fingerprints have in common? Wavelet analysis. As of Version 8, wavelet analysis is an integral part of Mathematica. Wavelets themselves are short-lived wave-like oscillations. Taking the Morlet wavelet, for example, we can see that unlike sines and cosines, this wave-like oscillation is localized in the sense that it does not stretch out to infinity.
Announcements & Events

Thank You from the Wolfram Mathematica Virtual Conference Team

The very first Wolfram Mathematica Virtual Conference was a great success! Held in two sessions at different times to accommodate global attendees, this free event included 25 talks with Q&A and access to virtual networking. The conference started with Stephen Wolfram's keynote speech, which provided insights into the background and vision of Mathematica, Wolfram|Alpha, and the new Computable Document Format (CDF).
Announcements & Events

The Background and Vision of Mathematica

Opening keynote of the Wolfram Mathematica Virtual Conference 2011, September 26–27. Hi. I’m pleased to be with you. I’ve been asked to talk a bit about the background and vision of Mathematica. You know, this month it’s exactly 25 years since I started building Mathematica. It’s been really exciting seeing Mathematica grow and prosper over […]

Announcements & Events

Steve Jobs: A Few Memories

I’m so sad this evening—as millions are—to hear of Steve Jobs’s death. Scattered over the last quarter century, I learned much from Steve Jobs, and was proud to consider him a friend. And indeed, he contributed in various ways to all three of my major life projects so far: Mathematica, A New Kind of Science […]


Mathematica Q&A Series: Generating Random Numbers

Got questions about Mathematica? The Wolfram Blog has answers! We'll regularly answer selected questions from users around the web. You can submit your question directly to the Q&A Team. This week's question comes from Peter, a secondary school teacher: How can I generate random integers between -10 and 10, but excluding 0? Read below or watch this screencast for the answer (we recommend viewing it in full-screen mode):