Matrix inequalities ... a vector. Singular Value: A non-negative value that provides insight into the properties of a matrix, particularly in terms of its size and shape. Unitary Invariant Norm ...

example of reverse-mode/adjoint differentiation for optimizing g(p) = f(A(p)⁻¹b), showing why a linear-operator formula ... a norm of the input and output are needed to define a derivative more on ...

But, a new report from Oxfam International, published on the first day of the meeting in Davos, highlights how global inequality is more rampant than ever. The report, written by a team of policy ...

Physicists have found a simple and effective way to skip over an energy level in a three-state system, potentially leading to ...

One of the attorneys representing anonymous FBI agents suing the Department of Justice to block the public identification of agents who investigated Jan. 6 is a longtime anti-Trump lawyer who ...

Norm Eisen, a former White House ethics lawyer, said President Trump is “testing and pushing the limits” during the first week of his second term, adding that such actions are common in ...

Right-wing politics is the new norm in the West because nobody is able to stop mass immigration. It is not rocket science. The Labour government is an outlier, with few friends abroad. Trump is ...

David McNew / Getty Images Economic inequality is easy enough to find statistics on, but these are often difficult to parse. For example, politician Bernie Sanders, a vocal campaigner for equality ...

The United States defined its preferred cyberspace norms—Internet openness, security, liberty, free speech, and with minimal government oversight and surveillance—in its 2011 International ...

The attacks on foreign assistance & USAID are already having life or death consequences for millions of people globally, cutting off critical food, water, medicine, sanitation, and more. Trump’s ...

Does sharing salaries in job postings help address the gender pay gap? March 15 was Equal Pay Day, the first in a series of reminders of how persistent the pay gap has been. More states and cities ...