class Sigmoid
implements GPUActivationFn
import { Sigmoid } from "https://deno.land/x/netsaur@0.1.2/src/gpu/activation.ts";
Sigmoid activation function f(x) = 1 / (1 + e^(-x))
import { Sigmoid } from "https://deno.land/x/netsaur@0.1.2/src/gpu/activation.ts";
Sigmoid activation function f(x) = 1 / (1 + e^(-x))