The oldest mathematics journal in the Western Hemisphere in continuous publication, the American Journal of Mathematics ranks as one of the most respected and celebrated journals in its field.

For a rational matrix function Φ with poles outside the unit circle, we estimate the degree of the unique superoptimal approximation 𝒜Φ by matrix functions analytic in the unit disk. We obtain sharp ...

CTA offers managed futures exposure with expert management, but inconsistent returns and weak NAV growth limit appeal for ...

Boeing and Airbus aside, markets hit highs despite weak data, inflation, and tariff risks that threaten spending and growth. See why headwinds may slow gains ahead.

The graphs of \(y = 2x + 1\) and \(y = 2x - 2\) are shown below. The graph of \(y = 2x + 1\) crosses the \(y\)-axis at (0, 1). The graph of \(y = 2x - 2\) crosses the ...

The function keys on your keyboard are the most powerful computer tools that you're not using. We're going to fix that. Almost every computer keyboard has a row of function keys at the top, but it ...

Pokémon type charts have long been a way for players to figure out the game’s overly complicated Rock Paper Scissors system of determining who is weak to what. That’s because Type effectiveness have ...

The US and China headed into a second day of talks on Sunday and discussed trade, the economy and TikTok during a day of high-level talks in Madrid, a Treasury official confirmed. The US team, led by ...

The rise of memecoins proves that attention is the most valuable commodity in crypto. Memecoins lower the barriers to entry in crypto by wrapping speculation ...

Using a VPN, or virtual private network, is one of the best ways to protect your online privacy. We review dozens every year, and these are the best VPNs we've tested. I’ve been writing about ...

Caroline Banton has 6+ years of experience as a writer of business and finance articles. She also writes biographies for Story Terrace. Thomas J. Brock is a CFA and CPA with more than 20 years of ...