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| author | Ross Barnowski <rossbar@berkeley.edu> | 2020-02-27 16:30:54 -0800 |
|---|---|---|
| committer | Ross Barnowski <rossbar@berkeley.edu> | 2020-05-07 10:26:32 -0700 |
| commit | 9c83b13ce1b08aed8181d284566d002086393a89 (patch) | |
| tree | e0d8e8316290306ab381e6997399630f0ff1ef01 /numpy/polynomial/polynomial.py | |
| parent | 965b41d418e6100c1afae0b6f818a7ef152bc25d (diff) | |
| download | numpy-9c83b13ce1b08aed8181d284566d002086393a89.tar.gz | |
ENH: Improved __str__, __format__ for polynomials
Changes the printing style of instances of the convenience classes in
the polynomial package to a more "human-readable" format.
__str__ has been modified and __format__ added to ABCPolyBase, modifying
the string representation of polynomial instances, e.g. when printed.
__repr__ and the _repr_latex method (which is used in the Jupyter
environment are unchanged.
Two print formats have been added: 'unicode' and 'ascii'. 'unicode' is
the default mode on *nix systems, and uses unicode values for numeric
subscripts and superscripts in the polynomial expression. The 'ascii'
format is the default on Windows (due to font considerations) and uses
Python-style syntax to represent powers, e.g. x**2. The default
printing style can be controlled at the package-level with the
set_default_printstyle function.
The ABCPolyBase.__str__ has also been made to respect the linewidth
printoption. Other parameters from the printoptions dictionary are not
used.
Co-Authored-By: Warren Weckesser <warren.weckesser@gmail.com>
Co-authored-by: Eric Wieser <wieser.eric@gmail.com>
Diffstat (limited to 'numpy/polynomial/polynomial.py')
| -rw-r--r-- | numpy/polynomial/polynomial.py | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/numpy/polynomial/polynomial.py b/numpy/polynomial/polynomial.py index 2fb032db3..97f1e7dc0 100644 --- a/numpy/polynomial/polynomial.py +++ b/numpy/polynomial/polynomial.py @@ -1495,6 +1495,14 @@ class Polynomial(ABCPolyBase): window = np.array(polydomain) basis_name = None + @classmethod + def _str_term_unicode(cls, i, arg_str): + return f"ยท{arg_str}{i.translate(cls._superscript_mapping)}" + + @staticmethod + def _str_term_ascii(i, arg_str): + return f" {arg_str}**{i}" + @staticmethod def _repr_latex_term(i, arg_str, needs_parens): if needs_parens: |