Linear Algebra for the Standard C++ Library

Linear algebra is a mathematical discipline of ever-increasing importance in today’s world, with direct application to a wide variety of problem domains, such as signal processing, computer graphics, medical imaging, machine learning, data science, financial modeling, and scientific simulations. And yet, despite the relevance of linear algebra to so many aspects of modern computing, the C++ standard library does not include a set of linear algebra facilities. This talk will describe a proposal before the C++ standardization committee (P1385) to add linear algebra to the standard library. We’ll begin with a quick refresher on what linear algebra is and why it’s so important. Next, we’ll cover the features and high-level requirements for the proposed components, including a review of related mathematical objects deliberately excluded. We’ll then discuss in detail the design of the proposed components, the evolution of that design, and its rationale. In particular, we’ll discuss in depth how the requirements we set out to fulfill led directly to the design, and how modern C++ allows us to specify an extensible interface that is expressive, customizable, and supports high performance. Along the way, the talk will also provide some color commentary regarding the process of composing, submitting, and advocating a proposal for a significant new library feature.

EVENT:

C++ Now 2019

SPEAKER:

Bob Steagall

PUBLICATION PERMISSIONS:

Original video was published with the Creative Commons Attribution license (reuse allowed).

ATTRIBUTION CREDITS:

Original video source: https://www.youtube.com/watch?v=CslK9tu9ssA

Questions?

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