Uploaded August 2017 | Updated September 2026, 4 hours ago

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Make sure to check out the previous video first, it covers the feed forward and setting up data for our neural network, youtu.be/Xx7yd4T6sbM

Here is the code to go with the video: github.com/ejmejm/Iris-Neural-Network/blob/master/iris_notf.ipynb

This video covers the majority of the math and equations that actually go into a neural network. We particularly go over the idea of gradient descent and how to calculate the gradient of a neural network.

Thanks for watching!