International Congress of Mathematicians (ICM), July 13, 2022.
Communicating Applied Mathematics in 2021, Gold Medallist Talk, IMA
Mathematics 2021 Online Series, May 6, 2021. Slides,
Completing, Thresholding, and Factorizing Symmetric Positive Definite Matrices
IMA Early Career Mathematicians’ Spring Conference 2021, March 13, 2021. Slides
Mathematics of Today’s Floating-Point Arithmetic
London Mathematical Society Naylor Lecture, November 20, 2020. Slides.
A talk originally given to the Leicester Actuarial Science Society and Students Union Mathematical Society, October 21, 2020. Slides.
The Anatomy of the World’s Fastest Linear Equation Solver
Random Orthogonal Matrices in High Performance Computing
Masked Guest Speaker, Extreme Computing Research Center, King Abdullah University of Science and Technology, 2020. Slides.
Are Numerical Linear Algebra Algorithms Accurate at Extreme Scale and at Low Precisions?
E-NLA Online Seminar Series on Numerical Linear Algebra, April 29, 2020. Slides.
Exploiting Mixed Precision Arithmetic for Fast Solution of Positive Definite Linear Systems
Distinguished Lecture Series, Department of Computer Science, University of British Columbia, December 5 2019. Slides.
Exploiting Low Precision Arithmetic in the Solution of Linear Systems
9th International Congress on Industrial and Applied Mathematics, Valencia, 2019. Slides.
Probabilistic Versus Worst-Case Rounding Error Analysis
Advances in Numerical Linear Algebra: Celebrating the Centenary of the Birth of James H. Wilkinson, May 29-30, 2019.
Tricks and Tips in Numerical Computing
JuliaCon, London, August 9, 2018.
The Rise of Multiprecision Computations
The Statistical and Applied Mathematical Sciences Institute (SAMSI), April 26, 2017.
Challenges in Multivalued Matrix Functions
North Carolina State # University, April 25, 2017.
How and How Not to Compute the Exponential of a Matrix
NAG Technical Event, September 24, 2010. Video