[SciPy-user] what does 'd' mean in array([0.0, 1.0, 2.0, 3.0], 'd')

dmitrey openopt@ukr....
Thu Aug 30 10:34:12 CDT 2007

hi all,
during debug I obtain
 >>> x
array([0.5, 1.5, 2.5, 3.5], 'd')

What does this 'd' mean?
How can I construct a = array(something) to obtain array of same type?

Thank you in advance, D.

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