[問題] scipy spdiags

[jigfopsda (jigfopsda)]

http://docs.scipy.org/doc/scipy/reference/generated/scipy.sparse.spdiags.html
我照這網站上的範例打結果出現錯誤@@

>>> from scipy import *
>>> data = array([[1,2,3,4],[1,2,3,4],[1,2,3,4]])
>>> diags = array([0,-1,2])
>>> spdiags(data, diags, 4, 4).todense()

Traceback (most recent call last):
  File "<pyshell#3>", line 1, in <module>
    spdiags(data, diags, 4, 4).todense()
NameError: name 'spdiags' is not defined

有import了應該是不會發生這種事情吧(？)
請問可能會是什麼問題呢？


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