Anthony M. Scopatz

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SymPy is an open source computer algebra system written in pure Python. It 9 is built with a focus on extensibility and ease of use, through both interactive and programmatic 10 applications. These characteristics have led SymPy to become the standard symbolic library for 11 the scientific Python ecosystem. This paper presents the architecture of SymPy, a(More)
We propose a terahertz (far-infrared) circular dichroism-based life-detection technology that may provide a universal and unequivocal spectroscopic signature of living systems regardless of their genesis. We argue that, irrespective of the specifics of their chemistry, all life forms will employ well-structured, chiral, stereochemically pure macromolecules(More)
Biopolymers such as proteins, DNA and RNA fold into large, macromolecular chiral structures. As charged macromolecules, they absorb strongly in the terahertz due to large-scale collective vibrational modes; as chiral objects, this absorption should be coupled with significant circular dichroism. Terahertz circular dichroism (TCD) is potentially important as(More)
As nuclear power expands, technical, economic, political, and environmental analyses of nuclear fuel cycles by simulators increase in importance. To date, however, current tools are often fleet-based rather than discrete and restrictively licensed rather than open source. Each of these choices presents a challenge to modeling fidelity, generality,(More)
on waste can alter the optimum transition path. In the optima with recycle, the lower waste penalty from reduced buildup of 239Pu more than compensates for the separations and fuel fabrication facility costs. Figure 3 shows this buildup for each of the runs. However, with a high repository discount (run 3) recycle technology is unable to compete with cheap(More)
The current state of nuclear fuel cycle simulation exists in highly customized form. Satisfying a wide range of users requires model modularity within such a tool. Cyclus is a fuel cycle simulator specifically designed to combat the lack of adaptability of previous generations of simulators. This is accomplished through an agent-based infrastructure and(More)
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