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Education & Academic

Graph Theory and Finance in Mathematica

Diversification is a way for investors to reduce investment risk. The asset values within a well-diversified portfolio do not move up and down in perfect synchrony. Instead, when some assets' values move up, others tend to move down, evening out large, portfolio-wide fluctuations and thus reducing risk. A simple way to explore diversification within the stock market is to invest in stocks from different sectors or different geographic regions. Beyond stocks, investors can consider diversification in different asset classes such as bonds, commodities, or real estate. The following chart shows the S&P 500 and Dow Jones Industrials indices, indicators of return that move in sync with each other. You can download the Computable Document Format (CDF) version of this post below to execute this code yourself.
Announcements & Events

Announcing Wolfram SystemModeler

Explore the contents of this article with a free Wolfram SystemModeler trial. Today I’m excited to be able to announce that our company is moving into yet another new area: large-scale system modeling. Last year, I wrote about our plans to initiate a new generation of large-scale system modeling. Now we are taking a major […]

Announcements & Events

Mathematica Experts Live: Visualization Q&A 2012

For the first time, we're holding a virtual event in a new talk-show format. We'll put Mathematica experts live on camera to answer your questions about visualization. Our host will accept questions in real time and pass them to three of our graphics experts. You can also submit your question when you register for the event. We will be prepared to address questions on graphics and visualizations, similar to these: How can I add a drop shadow to my plot? How can I independently color different sides of a surface? How can I turn several locators on and off on a graphic with a mouse click? How can I make an x-y scatter plot with auxiliary histograms placed next to the x-y axes? How can I create an intertwined graphic like the one below? The virtual event will be held Tuesday, May 22, from 11am to noon Eastern Daylight Time (EDT).
Education & Academic

Announcing Wolfram Finance Platform

One key project for me recently has been the new Wolfram Finance Platform, which I am pleased to announce today. This is a major new initiative for us to create the ultimate computation environment for finance. It builds on our existing computational technology with extra capabilities and professional support services. As part of this, I spent some time interviewing finance customers in the city of London about what they liked and didn't like about Mathematica, what they wanted, and why some of their colleagues didn't use it.
Announcements & Events

Looking to the Future of A New Kind of Science

(This is the third in a series of posts about A New Kind of Science. Previous posts have covered the original reaction to the book and what’s happened since it was published.) Today ten years have passed since A New Kind of Science (“the NKS book”) was published. But in many ways the development that […]

Announcements & Events

One Year of Daily Tips from @MathematicaTip

It's been one year since we launched our Twitter feed for bite-sized Mathematica hints and tips! Thousands of people follow @MathematicaTip to get a new tip every day, Monday through Friday, covering everything from keyboard shortcuts:

Instead of using % to refer to the most recent output, try Ctrl+Shift+L (Mac: Cmd+Shift+L) to directly insert the output from above.

— MathematicaTip (@MathematicaTip) October 10, 2011
Computation & Analysis

From the Wolfram Science Summer School to Wolfram|Alpha Pro

In spring 2011, while adding the finishing touches to my PhD dissertation, I decided to enroll in the Wolfram Science Summer School (then called the NKS Summer School). I never suspected that my project at the Summer School would lead to a job and my involvement in one of the central features of Wolfram|Alpha Pro. During my years as a graduate student I had the chance to live in three different countries and experience different working environments: other than my native Italy, I lived in Paris, where my PhD was based at ENS, and in Princeton, where I was lucky enough to spend time at the Institute for Advanced Study. However, at the end of my PhD, I felt that most of my interest in what I was doing was gone and that I needed to try something new. Once at the Summer School, I had the chance to meet and chat with Stephen Wolfram as he helped me come up with a problem to work on. One of the first things I told him was that I was weary of open-ended academic kinds of problems and I was afraid no one was ever going to read my papers. I said that I wanted to deal with intellectual challenges, but I also wanted to tackle something that had a clear beginning and end. His reply came as a disappointment, since what he suggested I work on was both completely outside my area of expertise and clearly one of those impossibly wide problems that I was now skeptical of. What did he say?
Products

Add a Wolfram Demonstration to Your Site in One Easy Step

With nearly 8,000 interactive knowledge apps available on a huge variety of topics in the Wolfram Demonstrations Project, you're bound to find one—or more—that you want to share. Now you can easily embed any Demonstration you like on your own blog or website in one step. Watch this short video or read on to see how (we recommend viewing the video in full-screen mode):