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64 lines
1.4 KiB
Org Mode
64 lines
1.4 KiB
Org Mode
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#+begin_src elisp tangle: no :results none :exports none
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(setq pwd (file-name-directory buffer-file-name))
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(setq name (file-name-nondirectory (substring buffer-file-name 0 -4)))
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(setq lib (concat pwd "lib/"))
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(setq testdir (concat pwd "test/"))
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(setq mli (concat lib name ".mli"))
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(setq ml (concat lib name ".ml"))
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(setq test-ml (concat testdir name ".ml"))
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(org-babel-tangle)
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#+end_src
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* Spin
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:PROPERTIES:
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:header-args: :noweb yes :comments both
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:END:
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Electron spin
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** Type
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#+begin_src ocaml :tangle (eval mli)
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type t = Alfa | Beta
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#+end_src
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Note :
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~Alfa~ if written with an 'f' instead of 'ph' because it has the same number of
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letters as ~Beta~, so the alignment of the code is nicer.
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#+begin_src ocaml :tangle (eval ml) :exports none
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type t = (* m_s *)
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| Alfa (* {% $m_s = +1/2$ %} *)
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| Beta (* {% $m_s = -1/2$ %} *)
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#+end_src
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** Functions
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#+begin_src ocaml :tangle (eval mli)
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val other : t -> t
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#+end_src
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Returns the opposite spin
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#+begin_src ocaml :tangle (eval ml) :exports none
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let other = function
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| Alfa -> Beta
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| Beta -> Alfa
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let to_string = function
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| Alfa -> "Alpha"
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| Beta -> "Beta "
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#+end_src
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** Printers
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#+begin_src ocaml :tangle (eval mli)
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val pp : Format.formatter -> t -> unit
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#+end_src
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#+begin_src ocaml :tangle (eval ml) :exports none
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let pp ppf t =
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Format.fprintf ppf "@[%s@]" (to_string t)
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#+end_src
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