Field

A field is a physical quantity that takes a value at different points in space.

• Scalar Field: It is only a function of space. Example: Temperature-$t(x,y,z)$
• Vector Field: It is a function of space and time. Example: Velocity field-$v(x,y,z,t)$

How to represent a quantity in the form of a field?

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References

1. https://www.feynmanlectures.caltech.edu/II_01.html
2. https://en.wikipedia.org/wiki/Field_(physics)