[Numpy-discussion] strange bug (original) (raw)

Johannes Loehnert a.u.r.e.l.i.a.n at gmx.net
Tue Jun 20 02:08:50 EDT 2006


Hi,

## Output: numpy.version: 0.9.8 y: [ 0. 1. 2. 3. 4. 5. 6. 7. 8. 9.] y**2: [ 0. 1. 4. 9. 16. 25. 36. 49. 64. 81.] z: [ 0. 1. 2. 3. 4. 5. 6. 7. 8. 9.] z**2: [ 0.00000000e+00 1.00000000e+00 1.60000000e+01 8.10000000e+01 2.56000000e+02 6.25000000e+02 1.29600000e+03 2.40100000e+03 4.09600000e+03 6.56100000e+03]

obviosly the last is z**4. dtypes are the same for y and z (float64).

One addition:

In [5]: z = arange(10, dtype=float)

In [6]: z **= 1

In [7]: z zsh: 18263 segmentation fault ipython



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