Before I explain why your formula has double square brackets, it's important to understand the difference between direct and ...

The way to create a grid of evenly spaced hexagons. The color of each hexagon is the color of the gradient at the center of the hexagon. Each hexagon acts as a pixel. In the tutorial that use ...

Grid cells are a class of specialized neurons in a brain region called the entorhinal cortex, which is known to support ...