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10 changes: 4 additions & 6 deletions maths/sigmoid_linear_unit.py
Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,7 @@
import numpy as np


def sigmoid(vector: np.array) -> np.array:
def sigmoid(vector: np.ndarray) -> np.ndarray:
"""
Mathematical function sigmoid takes a vector x of K real numbers as input and
returns 1/ (1 + e^-x).
Expand All @@ -29,17 +29,15 @@ def sigmoid(vector: np.array) -> np.array:
return 1 / (1 + np.exp(-vector))


def sigmoid_linear_unit(vector: np.array) -> np.array:
def sigmoid_linear_unit(vector: np.ndarray) -> np.ndarray:
"""
Implements the Sigmoid Linear Unit (SiLU) or swish function

Parameters:
vector (np.array): A numpy array consisting of real
values.
vector (np.ndarray): A numpy array consisting of real values

Returns:
swish_vec (np.array): The input numpy array, after applying
swish.
swish_vec (np.ndarray): The input numpy array, after applying swish

Examples:
>>> sigmoid_linear_unit(np.array([-1.0, 1.0, 2.0]))
Expand Down