The OLS function performs a comprehensive Ordinary Least Squares (OLS) regression, offering both standard and robust inference metrics. It takes in a dependent variable y and a matrix of independent ...

This work proposes a hybrid training strategy that embeds a least-squares optimization step within the training loop of physics-informed neural networks (PINNs) to solve the 2D acoustic Helmholtz ...

Stocks: Real-time U.S. stock quotes reflect trades reported through Nasdaq only; comprehensive quotes and volume reflect trading in all markets and are delayed at least 15 minutes. International ...

At close: April 25 at 4:00:00 PM EDT ...

Previous title, replaced January 2025: Four adults and three children standing in a line; below them are lines of pink and white flowers, above is a blue sky with a red square to the top right corner.