Why each W1 have 2 row?

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whyy w have 2 row? someone explain pleasee

Hi @Arthur_Hozanna, welcome to the community!

This video is continuing on using the coffee roasting example from previous videos. (This is mentioned very briefly). From the example in the previous videos, we know that x has 2 features (so, two values per row). The number of rows in w should match the number of features in x, so that we can do a dot product of w and x.

Here’s a screenshot from the previous video with a little more explanation about that part: