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diff --git a/transverse/hermitepoly.m b/transverse/hermitepoly.m
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+%-----------------------------------
+% Hermite Polynomial
+% (See e.g. Arfken section 13.1)
+%
+% SYNTAX y=hermitepoly(n,x)
+%-----------------------------------
+
+function y=hermitepoly(n,x)
+
+m=[0:floor(n/2)];
+
+a=factorial(n-2*m);
+b=factorial(m);
+
+y=zeros(size(x));
+for s=1:length(m)
+    y = y   +   factorial(n) ./ a(s) ./ b(s)  .*   (-1).^m(s)  *  (2*x).^(n-2*m(s));
+end