What is gradient (e.g. vector gradient, concentration gradient, horizontal pressure gradient, force)? Mathematics (vector gradient), physics (concentration gradient), geography (horizontal pressure gradient) and so on are all involved. But what exactly does gradient mean?

What is gradient (e.g. vector gradient, concentration gradient, horizontal pressure gradient, force)? Mathematics (vector gradient), physics (concentration gradient), geography (horizontal pressure gradient) and so on are all involved. But what exactly does gradient mean?

It means one layer at a time. Question: one layer at a time? Then "horizontal pressure gradient force" is not interpreted as "horizontal pressure layer at a time"? This is Shenma Dongdong? I will explain it more clearly. OK ~ answer: Well, it's equivalent to stairs. One layer at a time. From high to low or from low to high. For example: horizontal