{"id":51645,"date":"2024-04-15T23:27:47","date_gmt":"2024-04-15T23:27:47","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=51645"},"modified":"2024-04-15T23:27:47","modified_gmt":"2024-04-15T23:27:47","slug":"the-array-object-returned-by-__array_prepare__-is-passed-to-the-ufunc-for-computation","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-array-object-returned-by-__array_prepare__-is-passed-to-the-ufunc-for-computation\/","title":{"rendered":"The array object returned by __array_prepare__ is passed to the ufunc for computation."},"content":{"rendered":"

[amp_mcq option1=”TRUE” option2=”nan” option3=”nan” option4=”nan” correct=”option3″]<\/p>\n

The correct answer is False<\/strong>.<\/p>\n

The array object returned by array_prepare<\/strong> is passed to the ufunc for computation.<\/p>\n

The array_prepare<\/strong> function is called by the ufunc to prepare the input arrays for computation. The function returns a new array object that is used by the ufunc for computation. The new array object may be a copy of the input array, or it may be a new array that is created from the input array.<\/p>\n

The array_finalize<\/strong> function is called by the ufunc after computation has been completed. The function is responsible for finalizing the output array. The function may return the output array, or it may return a new array that is based on the output array.<\/p>\n

Here is an example of how the array_prepare<\/strong> and array_finalize<\/strong> functions are used:<\/p>\n

“`python
\nimport numpy as np<\/p>\n

def array_prepare<\/strong>(arr):
\n return arr.copy()<\/p>\n

def array_finalize<\/strong>(arr):
\n pass<\/p>\n

ufunc = np.add<\/p>\n

result = ufunc(arr1, arr2, array_prepare<\/strong>=array_prepare<\/strong>, array_finalize<\/strong>=array_finalize<\/strong>)
\n“`<\/p>\n

In this example, the array_prepare<\/strong> function is used to create a copy of the input arrays. The array_finalize<\/strong> function is not used in this example.<\/p>\n

The array_prepare<\/strong> and array_finalize<\/strong> functions are not required for all ufuncs. However, they are often used to improve the performance of ufuncs.<\/p>\n","protected":false},"excerpt":{"rendered":"

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