1. Basis in mathematics: In mathematics, basis is a linearly independent group in vector space, and any vector in vector space can be obtained by linear combination of this group of vectors. In calculus, bases also point to every decomposable vector in scalar fields.

2. Fundamentals in science and technology: Fundamentals are widely used in artificial intelligence, machine learning, deep learning and other fields in computer science. For example, in machine learning, sample data is usually represented by vectors.

3. Bases in life: Bases have a broader meaning in daily life. For example, in architectural design, foundation is a manifestation of basement. The stability and firmness of buildings are directly related to the quality and depth of foundation. For another example, in the field of floral art, the flower stand of flower arrangement is the foundation. Through the support of the flower stand, the flower arrangement seems to float in the air.