Lu Guang boldly covered controversial issues like pollution in China until he went missing. Before he disappeared, photographer Lu Guang extensively documented pollution and social issues in China.

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Abstract: The Quick Response (QR) code, a machine-readable optical label, is a pattern two-dimensional of black and white blocks. At present its applications extend to various domains, including ...

Abstract: LU decomposition is essential in scientific computing for solving large linear systems, but its iterative nature and data dependencies limit the efficiency of traditional computation units.

Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. Robert Kelly is managing director of XTS Energy LLC ...