Cheng, R. , Liu, J. , Hao, L. and Wu, D. (2026) On the Application of the Infinitesimal Method to Two Categories of Problems in College Physics. Open Journal of Social Sciences, 14, 378-389. doi: ...

A differential equation is an equality constraining a mathematical function in relation to its derivatives over one or multiple variables. Such equations may constitute the mathematical model for a ...

Financial word of the day: Black-Scholes model — The Black-Scholes model remains the 2026 gold standard for pricing trillions in derivatives. It uses five key data points: stock price, strike, time, ...

The observed near flatness of galactic rotation curves has long been interpreted as evidence for large amounts of non-baryonic dark matter. Here we show that this phenom ...

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Mutual fund feeds and expenses are charges that may be incurred by investors who hold mutual funds. Running a mutual fund involves costs, including shareholder transaction costs, investment advisory ...

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The investment seeks long term capital appreciation. The fund invests primarily in equity securities of foreign companies with small market capitalizations (market value of publicly traded equity ...

An elementary math problem has divided the internet after an easy-looking equation turned out to be anything but simple. Many X users were stumped by the problem 16 ÷ 4 X 4 - 4, posted by ...

Natural gas has its best day in four years… an arctic blast across the country… why the opportunity is much bigger… Eric ...

Peter Gratton, Ph.D., is a New Orleans-based editor and professor with over 20 years of experience in investing, risk management, and public policy. Peter began covering markets at Multex (Reuters) ...

The White House announced Monday that $50 billion will go to all 50 states to support rural health care, including more than $200 million to New Hampshire. The money was approved earlier this year.