https://mumybuzz.com/derma-rpx-cream/

importantly those right triangles being on curved surfaces The metric tensor makes the necessary Corrections allowing us to find those distances and fully describe the curvature of that surface You'll find the metric tensor is typically written with the letter G and some subscripts in order to describe higher dimensional surfaces we just expand the matrix for three-dimensional space the metric tensor would look like this, but we can keep going as For four-dimensional space-time, it looks like this 16 numbers which is really just 10 because of the symmetry these 1/2 is all we need at each point in four-dimensional space to completely describe how that space is curved so Again
https://mumybuzz.com/derma-rpx-cream/