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**PolymorphismPrince**
t1_ismf6h6 wrote

Reply to comment by **mcilrain** in **DeepMind breaks 50-year math record using AI; new record falls a week later** by **Melodic-Work7436**

Matrix multiplication is taking the dot product of every row with every column.

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**mcilrain**
t1_ismffnr wrote

I don't know what a dot product is, I tried googling it and it spat greek at me.

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**PolymorphismPrince**
t1_ismncj6 wrote

For example, to find the entry in row 4 and column 3 of the matrix you get out of the product, you take all the entries in the fourth row of the first matrix, all the entries in the 3rd column of the second matrix, multiply those lists together in the way you were talking about in your comment, and then add up all those multiplications.

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