What is Reference: Definition and 1000 Discussions

Reference is a relationship between objects in which one object designates, or acts as a means by which to connect to or link to, another object. The first object in this relation is said to refer to the second object. It is called a name for the second object. The second object, the one to which the first object refers, is called the referent of the first object. A name is usually a phrase or expression, or some other symbolic representation. Its referent may be anything – a material object, a person, an event, an activity, or an abstract concept.
References can take on many forms, including: a thought, a sensory perception that is audible (onomatopoeia), visual (text), olfactory, or tactile, emotional state, relationship with other, spacetime coordinate, symbolic or alpha-numeric, a physical object or an energy projection. In some cases, methods are used that intentionally hide the reference from some observers, as in cryptography.References feature in many spheres of human activity and knowledge, and the term adopts shades of meaning particular to the contexts in which it is used. Some of them are described in the sections below.

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  1. T

    A Lecture notes on Finite Difference Methods

    I have lately been working with Numerical Analysis and I am using Finite Difference Methods for Ordinary and Partial Differential Equations by Randall J. LeVeque. It was recommended to me by a friend of mine (physicist) https://epubs.siam.org/doi/book/10.1137/1.9780898717839?mobileUi=0&...
  2. websterling

    What are Good Reference Books for Python?

    Back in the day, when Perl was my go to language, Programming Perl, the Camel Book, from O'Reilly was The Reference. It was the quick and concise way to get an answer. And you'd probably learn something you weren't necessarily looking for and get a chuckle along the way. Now that Python is my...
  3. Singalo

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  4. P

    B Converting between frames of reference

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  5. olgerm

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  6. Opressor

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  7. J

    I Relativistic Reference Frames and the Big Bang?

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  8. M

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  9. A

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  10. D

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  11. Pencilvester

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  12. L

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  13. T

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  14. e0ne199

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  15. PeroK

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  16. Urs Schreiber

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  17. O

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  18. physicschick21

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  19. H

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  20. J

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  21. Swag ranger

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  22. C

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  23. F

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  24. A

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  25. B

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  26. V

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  28. G

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  29. P

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  31. C

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  32. Passionate Eng

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  33. J

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  34. M

    A Explaining the Geocentric Celestial Reference System

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  35. quasarLie

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  36. C

    Forces in inertial and non-inertial frame of reference

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  37. Joppy

    MHB Differential forms - Reference request

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  38. K

    Math of Reference Frames: Spanning Vector Space

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  39. B

    Elastic Collision in Two Reference Frames

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  40. F

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  41. M

    MHB What is the reference number given -5π/6?

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  42. M

    MHB What is the reference angle for 60° and -60°?

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  43. Physics345

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    Homework Statement Imagine that you are flying on an airliner on a long flight to Europe, at a constant speed of 300 m/s. a) You throw a ball towards the back of the plane at 20 m/s. You then shine a beam of light towards the back of the plane. How will these two things-the ball and the...
  44. Robert Shaw

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  45. Joppy

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  46. House

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  47. sparkie

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  48. K

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  49. nomadreid

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  50. M

    Best Algebra TextBook For Self Learner?

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