Multiplication table of shapes

I congratulate Tai-Danae Bradley for her excellent mathematics blog. In this blogpost she has a wonderful drawing about the multiplication of shapes.

“Given any two shapes and , their product ×Y is the shape whose vertical cross sections look like and whose horizontal cross sections look like .  Also notice that the point acts like a multiplicative identity: a point times a shape is just the shape. ”  – Tai-Danae Bradley


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