New posts in Notation

If the candela is a base SI unit, why isn't the sone an SI unit at all?

Einstein Summation Convention: One as Upper, One as Lower?

Tensor product in quantum mechanics?

Question about the expression of Witten Index

How to indicate that a unit is dimensionless

Uncertainty in parenthesis

Symbols of derivatives

Index notation with Navier-Stokes equations

Derivative with respect to a vector is a gradient?

Square bracket notation for anti-symmetric part of a tensor