👉 In mathematics, a biquadrantal is a type of vector that can be expressed in terms of its components as follows: x = x1 + x2i + x3j + x4k where i, j, and k are unit vectors representing the basis vectors for three dimensions. These vectors are called "biquadrants" because they have four coordinates (the first two are the x and y coordinates, while the third is the z component). Biquadrant notation
