PythonQ 240-8XX Manuale Utente Scaricare il pdf (Pagina 14)

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Array initialization from a Python f u n ction

>>> def myfunc(i, j):

... return (i+1)

*

(j+4-i)

...

>>> # make 3x6 array where a[i,j] = myfunc(i,j):

>>> a = fromfunction(myfunc, (3,6))

>>> a

array([[ 4., 5., 6., 7., 8., 9.],

[6., 8.,10.,12.,14.,16.],

[6., 9.,12.,15.,18.,21.]])

Numerical Python – p. 248/728

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