GitHub

The 3D Helmert transformation is a frequently used method in geodesy to produce transformations between different cartesian coordinate systems:

Xt = transformed coordinate vector X = initial coordinate vector T = translation vector R = rotation matrix including rx, ry, rz rx, ry, rz = rotations around the coordinate axes s = scale factor ...

Which Country is Farthest from India?

Curious to know which country is farthest from India? Here is a breakdown of distance calculations, and the country that lies ...
IEEE

Coordinate-Ordering-Free Upper Bounds for Linear Insertion-Deletion Codes

Abstract: In this paper we prove several coordinate-ordering-free upper bounds on the insdel distances of linear codes. Our bounds are stronger than some previous known bounds. We apply these upper ...
GitHub

Horizontal Time-Dependent Positioning (HTDP) is a utility that allows users to transform positional coordinates across time and between spatial reference frames.

HTDP (Horizontal Time-Dependent Positioning) enables users to estimate horizontal displacements and/or horizontal velocities related to crustal motion in the United States and its territories. The ...