Not really more "Sage" way but
sage: from PIL import Image
sage: nmax = 256
sage: I = Image.new('1', (nmax,nmax))
sage: I.putdata([int(binomial(n,k)%2 == 1) for n in range(nmax) for k
in range(nmax)])
sage: I.save('/tmp/tmp.png')
Anyway, any Python is good to be used in Sage. You should be more
precise with what you want...
Vincent
PS: Note that the GUI support for matplotlib is somehow broken in
Sage... and this is a very sad.
2014-11-27 15:08 UTC−06:00, Christophe Bal <[email protected]>:
> Hello.
>
> Is it possible to do the same thing as the following code in "pure" Sage
> coding ?
>
> *Christophe BAL*
> *Enseignant de mathématiques en Lycée*
> *et développeur Python amateur*
>
> *--**------**------**--- **CODE **---**------**------**--*
> *import matplotlib.pyplot as plt*
> *import numpy as np*
> *from sympy import binomial*
>
> *nmax = 200*
>
> *im = np.zeros((nmax+1, nmax+1, 3))*
>
> *for n in range(nmax):*
> * for k in range(n+1):*
> * if binomial(n, k) % 2 == 1:*
> * im[k, n] = (255, 255, 255)*
>
> *im = im.astype(np.uint8)*
>
> *plt.imshow(im)*
> *plt.axis('off')*
> *plt.show()*
>
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