Calculus of variations establishes a framework to determine the extrema of functionals—mappings from functions to real numbers—which has been pivotal in elucidating natural principles such as the ...

Calculus to the level of ODEs, partial derivative and multiple integrals, some knowledge of PDEs helpful but not essential. Students should have a certain comfort level with dealing with advanced ...

After a full year of hectic news, original trends and nonstop content, Merriam-Webster has summed it all perfectly in one word: “slop.” On Dec. 15, Merriam-Webster announced “slop” as the 2025 Word of ...

Lucas Downey is the co-founder of MoneyFlows, and an Investopedia Academy instructor. Dr. JeFreda R. Brown is a financial consultant, Certified Financial Education Instructor, and researcher who has ...

The Chicago Manual of Style is an American English style guide published by the University of Chicago Press. The Manual’s guidelines for publishing, style and usage, and citations and indexes—known as ...

Peanut is an important oil and protein crop. Here, the authors presents a population-specific pangenome for the PeanutMAGIC multiparent population and identify a third recessive AhFAD2C gene that can ...