This is well defined by the nonnegativity axiom of the definition of inner product space. The numerical definition of depends on context. Its explicit definition and application can therefore vary. Rather it must be seen as its "qualitative definition". Moreover, there is wide scope for interpretation in the definition. Another approach incorporates the notion of suffering into the definition. They concluded that this approach to defining death sufficed in reaching a uniform definition nationwide. They refer to the numerator and the denominator of the definition. E.F. Codd originally defined tuples using this mathematical definition. This leads to the more general "abstract" definition. This relates easily to the usual definition in analysis. There is no single definition for microservices. There is no single commonly agreed definition of microservices. There is another convention used in the definition of functions. R is subject to the topological definition of a limit.