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In mathematics, a basis function is an element of a particular basis for a function space. Every function in the function space can be represented as a linear combination of basis functions, just as every vector in a vector space can be represented as a linear combination of basis vectors .
Adjusted basis, the net cost of an asset after adjusting for various tax-related items; Basis point, 0.01%, often used in the context of interest rates; Basis trading, a trading strategy consisting of the purchase of a security and the sale of a similar security Basis of futures, the value differential between a future and the spot price
"As is" is a phrase used to indicate the existing condition of something without any modifications or improvements. [1] The term is employed in legal, business, and consumer settings to establish that an item or property is being sold or provided in its current condition, [2] [3] with no warranties or guarantees regarding its quality.
In practice, the expected future spot price is unknown, and the term "backwardation" may refer to "positive basis", which occurs when the current spot price exceeds the price of the future. [3]: 22 The opposite market condition to normal backwardation is known as contango. Contango refers to "negative basis" where the future price is trading ...
A basis (or reference frame) of a (universal) algebra is a function that takes some algebra elements as values () and satisfies either one of the following two equivalent conditions. Here, the set of all b ( i ) {\displaystyle b(i)} is called the basis set , whereas several authors call it the "basis".
A projective basis is + points in general position, in a projective space of dimension n. A convex basis of a polytope is the set of the vertices of its convex hull. A cone basis [5] consists of one point by edge of a polygonal cone. See also a Hilbert basis (linear programming).
The set Γ of all open intervals in forms a basis for the Euclidean topology on .. A non-empty family of subsets of a set X that is closed under finite intersections of two or more sets, which is called a π-system on X, is necessarily a base for a topology on X if and only if it covers X.
The term ex-ante (sometimes written ex ante or exante) is a New Latin phrase meaning "before the event". [1]In economics, ex-ante or notional demand refers to the desire for goods and services that is not backed by the ability to pay for those goods and services.