Converting bool to float

[Travis Oliphant]

Keith Goodman wrote:

>I had a hard time tracing a bug in my code. The culprit was this difference:
>
>  
>
>>>x
>>>      
>>>
>
>matrix([[True],
>        [True],
>        [True]], dtype=bool)
>  
>
>>>1.0 - x
>>>      
>>>
>
>matrix([[ 0.],
>        [ 0.],
>        [ 0.]], dtype=float32)     <------- float32
>  
>
>>>1.0*x
>>>      
>>>
>
>matrix([[ 1.],
>        [ 1.],
>        [ 1.]])                            <-------- float64
>
>  
>
>>>numpy.__version__
>>>      
>>>
>'1.0rc1'
>
>Any chance that 1.0 - x could return dtype = float64?
>  
>
I'm surprised it doesn't.   Both should follow bascially the same 
code-path.  Perhaps there is a missing function loop or something. 


I'll look in to it.

-Travis


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