exp2_op

→TensorImplPtr

int exp2_op(const int & a)

Base-2 exponential: $y = 2^{x} = \exp(x \ln 2)$ .

Composite over mul_op + exp_op. Multiplying against a constant tensor keeps the gradient chain visible to MulBackward and ExpBackward.

Math

y = \exp(x \cdot \ln 2), \qquad \frac{\partial y}{\partial x} = (\ln 2) \cdot 2^{x}

See Also

exp_op.

aTensorImplPtr

Input tensor.

TensorImplPtr

Tensor of the same shape and dtype as a.

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