https://github.com/jerrychen97/operatorsoperator

An accidental offer to help one of my collaborators brought both plenty of troubles and meanwhile a new idea for creating my own calculator for some common operators especially in physics.
https://github.com/jerrychen97/operatorsoperator

Last synced: 24 days ago
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An accidental offer to help one of my collaborators brought both plenty of troubles and meanwhile a new idea for creating my own calculator for some common operators especially in physics.

• Host: GitHub
• URL: https://github.com/jerrychen97/operatorsoperator
• Owner: JerryChen97
• Created: 2018-10-29T16:14:56.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2018-10-29T16:33:45.000Z (over 6 years ago)
• Last Synced: 2024-11-11T14:58:46.589Z (3 months ago)
• Language: Python
• Size: 1.95 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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# OperatorsOperator

An accidental offer to help one of my collaborators brought both plenty of troubles and meanwhile a new idea for creating my own calculator for some common operators especially in physics.

Considering the fact that I will be extremely busy recently, I am just going to create some demos and then suspend as always =。=

The first one should be of course the simplest commutative relationship between spatial coordinates and momentum operator, i.e. x and p, with the relationship

[x, p] := xp - px = i\hbar

For a less physical purpose and with more mathematical interpretation, this should be viewed equivalently as

[∂, x] = 1

which is quite easy to check.

And then here comes our problem: if you wish to treat something like ∂∂∂xxx so as to shift ∂ to the front like xxx∂∂∂, for some certain purposes to calculate some physical quantities, how can we get the final expression?

Roughly a potential method is obviously to deal with this as a string manipulation problem, which is exactly I have done in my first demo.