Duties arising from the model include these: 1  Pass on the flow of water without obstruction, pollution or diversion affecting the rights of others. 2  Maintain the bed and banks of the watercourse and to clear any debris, whether natural or artificial, to keep any culverts, rubbish screens, weirs and mill gates clear of debris.
The infinitely-repeated digit sequence is called the repetend or reptend. If the repetend is a zero, this decimal representation is called a terminating decimal rather than a repeating decimal, since the zeros can be omitted and the decimal terminates before these zeros.
In mathematics, an expression (or mathematical expression) is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, punctuation, grouping, and other aspects of logical syntax.n general the meaning of expressions is not limited to designating values; for instance, an expression might designate a condition, or an equation that is to be solved, or it can be viewed as an object in its own right that can be manipulated according to certain rules.