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# PyTorch torch.isreal Function * * Pytorch torch Reference Manual](#) `torch.isreal` is a function in PyTorch used to check if a number is real. It returns a boolean tensor where each element is `True` if it is a real number (not a complex number). ### Function Definition torch.isreal(input) * * * ## Usage Example ## Example import torch # Create a tensor containing real and complex numbers x = torch.tensor([1.0,2+3j,4.0,5+1j]) # Check if Real result = torch.isreal(x) print(result) The output result is: tensor([True, False, True, False]) * * Pytorch torch Reference Manual](#)