Shini introduces us to integrals, and how they're critical to studying physics. Continuing with last week's introduction of calculus, Shini leads us through the ways that integrals can help us figure ...

Using the path-integral formalism, Ryan Parker, Mark Stedman and Luca Capriotti develop an accurate and easy-to-compute semi-analytical approximation for a general class of default intensity models.

More than 70 years ago Richard Feynman found a formulation of quantum theory in which probability amplitudes are not calculated by means of an operator formalism, but by integration over multitudes of ...