Before the coronavirus upended higher education, graduate-student activists at the University of California at Santa Cruz were waging an unrelenting wildcat grading strike against the administration.

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 ...

When students begin to study calculus, equations and their graphs are mostly drawn on a “flat” plane. It’s when students proceed to advanced calculus that they find paper and pencil inadequate. A new ...