Torch Basic

Torch Basic

Elements

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Elements

Random

torch.rand(num)

x = 10 * torch.rand(num)

• torch.rand will generate the random numbers between 0.0 to 10.0
• x will have 10 random vales, each between 0.0 to 10.0

Min and Max

torch.min(x)
torch.max(x)

This function will return the maximum or minimum value

Mathematics

Mul

torch.mul(a, b) # a * b. multiple each elements a and b
torch.matmul(a, b) # a @ b. multiple matrix

E.g.

loss[i] = torch.sum(torch.mul(e, e)) / len(x)

loss function.

• e: error
• torch.mul(e, e): e error square. same as e.pow(2) or e**e
• torch.sum: sum of all the error square
• / len = Divide the sum of squared errors by the number of elements.

argmin

torch.argmin(loss)

return the index of the value of minimize