Category Archives: Tensors

We may have a story where we believe a 3×3 matrix is needed to convert a first thing to a second thing. We may choose a notation, a way of typing symbols, to build that 3×3 matrix even though we do not yet know what the numbers are. At this point we don’t know anyContinue reading “Placeholders”

We want to show you some math that shows what is necessary if you wish to go down the rabbit hole to find Invariancy. After that, we want to be brutally honest about the consequences of the choices we made to get Invariancy. We will even show the story from an angle that indicates theContinue reading “Ask Alice About Tensors”

Components of a white rank 4 tensor (identified by coordinates such as 1122) convert a blue 2×2 matrix to a red 2×2 matrix.