What do the upside down triangles in math and physics mean?

Question

For example, Maxwell’s equations contain upside down triangles. What exactly do they represent?

How does it apply to the real world?

In: 34

Answer 1

It represents a vector derivative.

It tells you how a vector (a quantity that has both an amount and a direction) will change over time.

For instance, in some of Maxwell’s equations, it represents how a charged particle’s movement is affected by electromagnetic fields over time.