Feat: doctest for composing Expressions

2019-07-16 09:31:30 +02:00 · 2019-07-16 09:31:30 +02:00 · a5f062a151
commit a5f062a151
parent f8e1c7f962
1 changed files with 2 additions and 0 deletions
--- a/mapytex/calculus/API/expression.py
+++ b/mapytex/calculus/API/expression.py
@ -461,6 +461,8 @@ class Expression(object):
        <Quadratic 3n^2 + 2n + 1>
        >>> f("u_n")
        <Exp: 3u_n^2 + 2u_n + 1>
+        >>> f(f)
+        <Polynomial 36x^2 + 16x + 6 + 36x^3 + 27x^4>
        """
        tree = self._tree
        variable = (set(tree.get_leafs(extract_variable)) - {None}).pop()