I learned this in undergrad calc 1 as the Heaviside cover-up method [1], named after Oliver Heaviside.
Heaviside was a remarkably productive scientist [2], contributing to a range of topics from vector calculus to electromagnetic theory.
Heaviside was a remarkably productive scientist [2], contributing to a range of topics from vector calculus to electromagnetic theory.
□A = J
where □ is the d'Alembertian, A is the 4-potential, and J is the 4-current.
Well.