Please Help

[Gary Herron]

On 01/26/2018 08:33 PM, mohammedfarazali at gmail.com wrote:
> import numpy as np
> x=np.unit8([250)
> print(x)
> y=np.unit8([10])
> print(y)
> z=x+y
> print(z)
>
>
> output
>
> [250]
> [10]
> [4]
>
> My question how is z [4]

Despite all the typos in your post, you appear to be doing 8 bit 
unsigned arithmetic.  Do you know what that means?  The answer you might 
have expected (i.e. 260) does not fit in the 0 ... 255 range of 8 bits, 
and so the result has overflowed and "wrapped around" to produce 4.

Try this for a simpler example of the same:
 >>> np.uint8(260)
4


Gary Herron


-- 
Dr. Gary Herron
Professor of Computer Science
DigiPen Institute of Technology
(425) 895-4418