numexpr - Fast numerical array expression evaluator for Python and NumPy. Please be aware that the numexpr project has been migrated to GitHub. This site has been declared unmaintained as of 2014-01-21. Sorry for the inconveniences. -- Francesc Alted What It Is The numexpr package evaluates multiple-operator array expressions many times faster than NumPy can. Also,numexpr implements support for multi-threading computations straight into its internal virtual machine, written in C. It is also interesting to note that, as of version 2.0, numexpr uses the new iterator introduced in NumPy 1.6 so as to achieve better performance in a broader range of data arrangements. Finally, numexpr has support for the Intel VML (Vector Math Library) -- integrated in Intel MKL (Math Kernel Library) --, allowing nice speed-ups when computing transcendental functions (like trigonometrical, exponentials...) on top of Intel-compatible platforms. Examples of Use Using it is simple: >>> import numpy as np>>> import numexpr as ne >>> a = np.arange(1e6)>>> b = np.arange(1e6) and fast...
DocumentCloud Online texts Professor Jim Herod and I have written Multivariable Calculus ,a book which we and a few others have used here at Georgia Tech for two years. We have also proposed that this be the first calculus course in the curriculum here, but that is another story.... Although it is still in print, Calculus,by Gilbert Strang is made available through MIT's OpenCourseWare electronic publishing initiative. Here is one that has also been used here at Georgia Tech. Linear Methods of Applied Mathematics, by Evans Harrell and James Herod.
Sage - French TraceMedia - Terra Incognita Introduction Terra Incognita visualises how Wikipedia has evolved over the last decade, mapping the geographic articles for over 50 languages. The maps highlight cultural biases, unexpected areas of focus, the overlaps between languages, and regions that are unique to a language. There are two versions of the project, one based on Google Maps that is better for browsing Wikipedia articles at the level of countries and regions, the other based on Kartograph that shows how the articles are structured using a variety of world map projections. Before starting the application be aware that the larger Wikipedia languages are over 10MB to download, and the maps will perform better for selections of no more than 300 thousand articles. Wikipedia’s Evolution One aspect of Wikipedia the visualisation explores is how the various language editions have spread over the globe at different times, looking specifically at the record of newly created articles. Spanish, Portuguese, French & Italian in Europe
Math Alive Course Instructors Ingrid DaubechiesShannon Hughes 218 (ID)/217 (SH) Fine Hall, Washington Road Princeton, NJ 08540-1000 You can find other contact information on a Contact us page. How is life different from 25 or even 10 years ago? Cryptography Error correction & compression Probability & Statistics Birth, Growth, Death & Chaos Graph Theory Voting & Social Choice You can navigate through the units using the navigation bar on the left. Each unit is divided into two parts. Don't forget to check the latest announcements on the Announcements page. Problem Sets: You need to look at the On-Line Labs and at the Problem Sets (clickable on the left). The videotaped lectures of Spring 2003 course are available on blackboard. References: For All Practical Purposes : Introduction to Contemporary Mathematics. 4th edition (December 1997). If you have any questions, Send Mail To: Math Alive Help
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