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Diffstat (limited to 'numpy/polynomial/chebyshev.py')
| -rw-r--r-- | numpy/polynomial/chebyshev.py | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/numpy/polynomial/chebyshev.py b/numpy/polynomial/chebyshev.py index 836f47363..c37b2c6d6 100644 --- a/numpy/polynomial/chebyshev.py +++ b/numpy/polynomial/chebyshev.py @@ -1743,7 +1743,8 @@ def chebroots(c): if len(c) == 2: return np.array([-c[0]/c[1]]) - m = chebcompanion(c) + # rotated companion matrix reduces error + m = chebcompanion(c)[::-1,::-1] r = la.eigvals(m) r.sort() return r |