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Muḥammad ibn Mūsā al-Khwarizmi, a Persian polymath, introduces the fundamentals of algebra in his seminal work, setting the stage for future mathematical rules and operations, including the foundations of PEMDAS.

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16th Century: Introduction of Parentheses

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16th Century: Introduction of Parentheses

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Mathematicians begin to use parentheses in mathematical expressions to define explicit orders of operations, paving the way for the 'P' in PEMDAS.

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17th Century: The Emergence of Exponents

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17th Century: The Emergence of Exponents

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The use of exponents is formalized by mathematicians to express large numbers and repeated multiplication, contributing to the 'E' in PEMDAS.

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19th Century: Standardization of Operations

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19th Century: Standardization of Operations

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Mathematicians like Augustus De Morgan and George Peacock contribute to the standardization of mathematical operations, clarifying the sequence in which they should be performed. This period sets the groundwork for the modern understanding of PEMDAS.

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The acronym 'PEMDAS' is officially coined to help students remember the correct order of operations in mathematics: Parentheses, Exponents, Multiplication, Division (from left to right), Addition, and Subtraction (from left to right).

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PEMDAS remains a fundamental concept taught in mathematics education around the world, equipping students with the skills needed to correctly interpret and solve mathematical expressions.