In mathematics, a coordinate-induced basis is a basis for the tangent space or cotangent space of a manifold that is induced by a certain coordinate system. Given the coordinate system x a {\displaystyle x^{a}} , the coordinate-induced basis e a {\displaystyle e_{a}} of the tangent space is given by
and the dual basis ω a {\displaystyle \omega ^{a}} of the cotangent space is