Aren't you just dividing by zero? I don't know what it means for "both
arrays to contain (0,0)" but if there is an i,j such that X[i,j] == 0 &&
Y[i,j] == 0, then sqrt(X.^2+
Y.^2) will have a zero at i,j.
On Thursday, January 1, 2015 2:30:55 AM UTC-5, Zahirul ALAM wrote:
>
> There is a NaN item at the very centre. How to deal with it?
>
> On Thursday, 1 January 2015 02:25:34 UTC-5, Zahirul ALAM wrote:
>>
>> any help please
>>
>> On Thursday, 1 January 2015 01:07:33 UTC-5, Zahirul ALAM wrote:
>>>
>>> may be not
>>>
>>> On Thursday, 1 January 2015 01:05:02 UTC-5, Zahirul ALAM wrote:
>>>>
>>>> I found the reason because both arrays contains (0, 0). Is there way
>>>> around it?
>>>>
>>>> On Thursday, 1 January 2015 00:50:56 UTC-5, Zahirul ALAM wrote:
>>>>>
>>>>> Happy new year!!
>>>>>
>>>>> I am encountering a very odd fft error. I am trying fft NxN data. The
>>>>> data is produced using a mathematical equation. After debugging I have
>>>>> found that the following expression is gives NaN error:
>>>>>
>>>>> fft(besselj(1, sqrt(X.^2+Y.^2))./sqrt(X.^2+Y.^2))
>>>>>
>>>>> where X and Y are Array{Float64,2}.
>>>>>
>>>>> if I write fft(besselj(1, sqrt(X.^2+Y.^2)) I get write answer. Seems
>>>>> like the division with the array is the issue. is issue. any idea why? is
>>>>> it a bug?
>>>>>
>>>>
