numpy.nancumprod() is used when we want to calculate the cumulative product of array elements along a given axis, considering non-numbers (NaN) as a whole. The total product does not change when NaNs are encountered and the leading NaNs are replaced by them. Units are returned for slices that are completely NaN or empty.
Syntax: numpy.nancumprod (arr, axis = None, dtype = None, out = None) p>
arr: [array_like] Array containing numbers whose sum is desired. If arr is not an array, a conversion is attempted.
axis: Axis along which the cumulative product is computed. The default is to compute the product of the flattened array.
dtype: Type of the returned array, as well as of the accumulator in which the elements are multiplied. If dtype is not specified, it defaults to the dtype of arr, unless arr has an integer dtype with a precision less than that of the default platform integer. In that case, the default platform integer is used instead.
out: [ndarray, optional] A location into which the result is stored.
- & gt; If provided, it must have a shape that the inputs broadcast to.
- & gt; If not provided or None, a freshly-allocated array is returned.
Return: A new array holding the result is returned unless out is specified, in which case it is returned.
Code # 1: Work
Input number: 10 cumulative product of input number: 
Code # 2:
Input array : [[2. 2. 2.] [2. 2. nan]] cumulative product of array elements: [2. 4. 8. 16. 32. 3 2.]
Code # 3:
Input array: [[2. 2. 2.] [2. 2. nan]] cumulative product of array elements taking axis 1: [[2. 4. 8.] [2. 4. 4.]]
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