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In mathematics and computer programming, the order of operations is a collection of rules that reflect conventions about which operations to perform first in order to evaluate a given mathematical expression. These rules are formalized with a ranking of the operations.
From an acronym: This is a redirect from an acronym to a related topic, such as the expansion of the acronym.. Remember that an acronym is a special type of initialism that can be spoken as a word, such as "NATO" or "radar" or "ANOVA".
The Law of Demeter (LoD) or principle of least knowledge is a design guideline for developing software, particularly object-oriented programs.In its general form, the LoD is a specific case of loose coupling.
The Westgard rules are a set of statistical patterns, each being unlikely to occur by random variability, thereby raising a suspicion of faulty accuracy or precision of the measurement system. They are used for laboratory quality control , in "runs" consisting of measurements of multiple samples.
Rules which are the same as their mirrored rule are called amphichiral. Of the 256 elementary cellular automata, 64 are amphichiral. The second such transformation is to exchange the roles of 0 and 1 in the definition. The result of applying this transformation to a given rule is called the complementary rule. For example, if this ...
In linear algebra, Cramer's rule is an explicit formula for the solution of a system of linear equations with as many equations as unknowns, valid whenever the system has a unique solution. It expresses the solution in terms of the determinants of the (square) coefficient matrix and of matrices obtained from it by replacing one column by the ...
The last rule can be used to move modular arithmetic into division. If b divides a, then (a/b) mod m = (a mod b m) / b. The modular multiplicative inverse is defined by the following rules: Existence: There exists an integer denoted a −1 such that aa −1 ≡ 1 (mod m) if and only if a is coprime with m.
Brahmagupta gave rules for addition, subtraction, multiplication, and division. Henry Burchard Fine , then a professor of mathematics at Princeton University , wrote the following: The Indians are the inventors not only of the positional decimal system itself, but of most of the processes involved in elementary reckoning with the system.