Hi, On 2018-01-09, Girard Henri <henri.gir...@gmail.com> wrote: > Am 09.01.2018 um 12:18 schrieb Girard Henri: >> An exemple >> >> from matplotlib import pyplot as plt >> from scipy.io import wavfile >> import numpy as np >> samplerate,data=wavfile.read("test.wav") >> times=np.arange(len(data))/float(samplerate) >> plt.plot(data[:1000])
What exactly goes wrong if you do the above in Sage? Please be more specific. In another message to me, you wrote: > Most of the time I don't want to make heavier "import"... First because > I don't master it and it's much better to do sqrt() instead np.sqrt() or > np.pi() I don't see why sqrt() is better than np.sqrt(). Anyway, as usual in Python, you can import functions like this: sage: from numpy import sqrt sage: sqrt <ufunc 'sqrt'> sage: sqrt(4) 2.0 sage: type(_) <type 'numpy.float64'> The disadvantage is that it overwrites Sage's sqrt() function. That's why I believe it is better to do np.sqrt(). Best regards, Simon -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.