Subtracts other, scaled by alpha, from input.
out i = input i − alpha × other i \text{{out}}_i = \text{{input}}_i - \text{{alpha}} \times \text{{other}}_i outi=inputi−alpha×otheri
Supports broadcasting to a common shape, type promotion, and integer, float, and complex inputs.
alpha (Number) – the multiplier for other.
out (Tensor, optional) – the output tensor.
Example:
>>> a = torch.tensor((1, 2)) >>> b = torch.tensor((0, 1)) >>> torch.sub(a, b, alpha=2) tensor([1, 0])
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