Prefix and postfix notations, on the other hand, build compound expressions that are never ambiguous, as they only ever yield a singular possible result that depends solely on the order in which the operators and operands appear in an expression when processed in a linear fashion. This doesn’t lend itself to the way computers generally perform operations: sequentially, and one-at-a-time. Infix expressions are, therefore, not evaluated in a linear, left-to-right fashion, but in an order of priority determined by the laws of operator precedence. Conventions governing operator precedence-which includes the use of parentheses-are a means of removing the very likely possibility that a given combination of operators and operands would otherwise give rise to ambiguous expressions, such as 12 ÷ 6 × 3, which could evaluate to either 6 or ⅔. Humans use infix expressions on a day-to-day basis, but the nature of infix notation means that compound expressions are generally not evaluated in a linear fashion. ISRO CS Syllabus for Scientist/Engineer Exam.ISRO CS Original Papers and Official Keys.GATE CS Original Papers and Official Keys. Full Stack Development with React & Node JS(Live).OS DBMS CN for SDE Interview Preparation.Full Stack Development with React & Node JS (Live).Data Structure & Algorithm Classes (Live).
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