*error message:*
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/sage/sagenb/sage_notebook/worksheets/rfcard/0/code/12.py",
line 15, in <module>
S=fft(s)
File "", line 1, in <module>
File
"/home/sage/sage_install/sage/local/lib/python2.6/site-packages/numpy/fft/fftpack.py",
line 159, in fft
return _raw_fft(a, n, axis, fftpack.cffti, fftpack.cfftf, _fft_cache)
File
"/home/sage/sage_install/sage/local/lib/python2.6/site-packages/numpy/fft/fftpack.py",
line 66, in _raw_fft
r = work_function(a, wsave)
TypeError: array cannot be safely cast to required type
On Sat, Jul 25, 2009 at 5:29 PM, Rafael Costa <[email protected]> wrote:
>
> Why Sage not execute the python code?
>
> from scipy import *
> from pylab import *
>
> sample_rate=1000.00
> t=r_[0:0.6:1/sample_rate]
> N=len(t)
> s=sin(2*pi*50*t)+sin(2*pi*70*t+pi/4)
> S=fft(s)
> f=sample_rate*r_[0:(N/2)]/N
> n=len(f)
> plot(f,abs(S[0:n])/N)
>
>
> Thank!
>
>
> Rafael
>
> >
>
--
Rafael Cardoso Dias Costa
Engenheiro de Controle e Automação - UFMG
Mestrando em Engenharia Química - Controle de Processos - UFRGS
+55 51 8541-0926 :: Porto Alegre - RS
+55 51 8430-1421 :: Porto Alegre - RS
+55 31 9165-5488 :: Belo Horizonte - MG
+55 31 3466-0146 :: Residência em Belo Horizonte - MG
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