Use numba implementation of multidimensional Hermite polynomials

.github/ACKNOWLEDGMENTS.md

@@ -37,13 +37,15 @@
 * [Theodor Isacsson](https://github.com/thisac) (Xanadu) - :postal_horn: Jarl of contractions
 
 * [Rachel Chadwick](https://github.com/rachelchadwick) (University of Bristol) - :princess: Queen of complex conjugates
- 
+
 * [Stefano Paesani](https://scholar.google.com/citations?user=u41vIV0AAAAJ&hl=it) (University of Bristol) - :crossed_swords: Emperor of phase space
 
-* [Jake Bulmer](https://scholar.google.com/citations?hl=it&user=gwklyzwAAAAJ) (University of Bristol) - :shield: Commander of clicks 
+* [Jake Bulmer](https://scholar.google.com/citations?hl=it&user=gwklyzwAAAAJ) (University of Bristol) - :shield: Commander of clicks
 
 * [Timjan Kalajdzievski](https://github.com/timjank) (Xanadu) - :beverage_box: Beard Czar
 
 * [Yuan Yao](https://github.com/sylviemonet) (Télécom Paris) - :dog: Schrödinger's Dog's owner
 
-* [Ali Asadi](https://github.com/maliasadi) (Western University) - :thread: Commander of threads
+* [Ali Asadi](https://github.com/maliasadi) (Western University) - :thread: Commander of threads
+
+* [Sebastián Duque](https://github.com/sduquemesa) (Xanadu) - 🎧 Quantum sound explorer

.github/CHANGELOG.md

@@ -5,6 +5,8 @@
 ### Improvements
 * Python installation no longer requires [`repoze.lru`](https://pypi.org/project/repoze.lru/). [#293](https://github.com/XanaduAI/thewalrus/pull/293)
 
+* Multidimensional Hermite polynomials are now implemented in numba, hence reducing the C++ dependencies of The Walrus. [#295](https://github.com/XanaduAI/thewalrus/pull/295)
+
 ### Bug fixes
 
 ### Breaking changes

docs/conf.py

@@ -103,7 +103,7 @@ class TypeMock(type):
     # TIP: if using the sphinx-bootstrap-theme, you need
     # "treeViewIsBootstrap": True,
     "exhaleExecutesDoxygen": True,
-    "exhaleDoxygenStdin":    "INPUT = ../include/stdafx.h ../include/libwalrus.hpp ../include/version.hpp ../include/trace_hafnian.hpp ../include/recursive_hafnian.hpp ../include/repeated_hafnian.hpp ../include/permanent.hpp ../include/hermite_multidimensional.hpp ../include/powtrace.hpp",
+    "exhaleDoxygenStdin":    "INPUT = ../include/stdafx.h ../include/libwalrus.hpp ../include/version.hpp ../include/trace_hafnian.hpp ../include/recursive_hafnian.hpp ../include/repeated_hafnian.hpp ../include/permanent.hpp ../include/powtrace.hpp",
     # "exhaleUseDoxyfile": True
 }
 

include/libwalrus.hpp

@@ -17,7 +17,6 @@
 #include <recursive_hafnian.hpp>
 #include <repeated_hafnian.hpp>
 #include <permanent.hpp>
-#include <hermite_multidimensional.hpp>
 
 /**
  * @namespace libwalrus

setup.py

@@ -59,7 +59,6 @@ def build_extensions():
             "./include/recursive_hafnian.hpp",
             "./include/repeated_hafnian.hpp",
             "./include/permanent.hpp",
-            "./include/hermite_multidimensional.hpp",
             "./include/stdafx.h",
             "./include/fsum.hpp",
         ],
@@ -71,9 +70,7 @@ def build_extensions():
 
     if platform.system() == "Windows":
         config["extra_compile_args"].extend(("-static",))
-        config["extra_link_args"].extend(
-            ("-static", "-static-libgfortran", "-static-libgcc")
-        )
+        config["extra_link_args"].extend(("-static", "-static-libgfortran", "-static-libgcc"))
     elif platform.system() == "Darwin":
         config["extra_compile_args"].extend(
             ("-Xpreprocessor", "-fopenmp", "-mmacosx-version-min=10.9", "-shared")