rsqrt¶

paddle. rsqrt ( x, name=None ) [source]

Rsqrt Activation Operator.

Please make sure input is legal in case of numeric errors.

$out = \\frac{1}{\\sqrt{x}}$

Parameters

• x (Tensor) – Input of Rsqrt operator, an N-D Tensor, with data type float32, float64 or float16.

• with_quant_attr (BOOLEAN) – Whether the operator has attributes used by quantization.

• name (str, optional) – Name for the operation (optional, default is None). For more information, please refer to Name.

Returns

Output of Rsqrt operator, a Tensor with shape same as input.

Return type

out (Tensor)

Examples

import paddle

x = paddle.to_tensor([0.1, 0.2, 0.3, 0.4])
out = paddle.rsqrt(x)
print(out)
# [3.16227766 2.23606798 1.82574186 1.58113883]