numpy.copysign(arr1, arr2, out = None, where = True, casting = ‘same_kind’, order = ‘K’, dtype = None) : This mathematical function helps user to change the sign of arr1 and arr2. Both arr1 or arr2 can be either list/sequence or a scalar value. If sequence, both must have same dimension; otherwise arr2 can be a scalar value.
arr1 : [array_like]Input array, values to change sign of.
arr2 : [array_like]Input array, values to change sign of.
out : [ndarray, optional]Output array with same dimensions as Input array, placed with result.
**kwargs : Allows you to pass keyword variable length of argument to a function. It is used when we want to handle named argument in a function.
where : [array_like, optional]True value means to calculate the universal functions(ufunc) at that position, False value means to leave the value in the output alone.
Return : x1 with sign of x2.
arr1 : [1, -23, 34, 11] arr2 : [-1, 2, -3, -4] Check sign of arr1 : [False True False False] Check sign of arr2 : [False True False False] Check for copysign : [ True False True True]
Check sign of arr2 : [False True False False] Check for copysign : [ True True True True]
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