C-number
The term Number C (or C number) is an old nomenclature used by Paul Dirac which refers to real and complex numbers. It is used to distinguish from operators (q-numbers or quantum numbers) in quantum mechanics. Although c-numbers are commuting, the term anti-commuting c-number is also used to refer to a type of anti-commuting numbers that are mathematically described by Grassmann numbers. The term is also used to refer solely to "commuting numbers" in at least one major textbook. — G. B. Folland, Quantum Field Theory: A Tourist Guide for Mathematicians (2008)
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C-number
The term Number C (or C number) is an old nomenclature used by Paul Dirac which refers to real and complex numbers. It is used to distinguish from operators (q-numbers or quantum numbers) in quantum mechanics. Although c-numbers are commuting, the term anti-commuting c-number is also used to refer to a type of anti-commuting numbers that are mathematically described by Grassmann numbers. The term is also used to refer solely to "commuting numbers" in at least one major textbook. — G. B. Folland, Quantum Field Theory: A Tourist Guide for Mathematicians (2008)
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The term Number C (or C number ...... uide for Mathematicians (2008)
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c數（英語：c-number）是狄拉克用過的一種命名法，用來表示量子力學中可以交換相乘次序而結果不变的量（一般是純量），和對應的是q數，q數不滿足乘法交換律，一般是算符。
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С-число — термин квантовой мех ...... ор A и B-это просто c-число.")
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G. B. Folland
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Quantum Field Theory: A Tourist Guide for Mathematicians
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Q In the early days of quantum ...... alar multiple of the identity.
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The term Number C (or C number ...... uide for Mathematicians (2008)
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c數（英語：c-number）是狄拉克用過的一種命名法，用來表示量子力學中可以交換相乘次序而結果不变的量（一般是純量），和對應的是q數，q數不滿足乘法交換律，一般是算符。
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С-число — термин квантовой мех ...... мере в одном крупном учебнике.
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C-number
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C-число
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C數
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