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title: "#activationfunctions articles | Hashnode"
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# #activationfunctions

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[Samiullah Syed Hussain](https://hashnode.com/@thethinkforge) Sep 22, 2025 · 3 min read

### [Activation Functions: The Brain Switches of Neural Networks](https://thethinkforge.hashnode.dev/activation-functions-the-brain-switches-of-neural-networks?utm_source=hashnode&utm_medium=feed)

Neural networks are often compared to the human brain—but if neurons are the “cells,” what tells them when to actually fire? That’s where activation functions come in. Think of them as little gatekeepers. Their job is simple (but critical): look at t...

[thethinkforge.hashnode.dev](https://thethinkforge.hashnode.dev/activation-functions-the-brain-switches-of-neural-networks?utm_source=hashnode&utm_medium=feed)