Iverson bracket
Sign in to savemathematical notation: [P] has the value 1 if P is true, and 0 if P is false
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mathematics
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programming language
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function
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Wayback Machine
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Donald Knuth
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absolute value
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Q118398
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pointer
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proposition
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coprime
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sum
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Kronecker delta
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APL
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sign function
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Euler's totient function
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Heaviside step function
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Boolean data type
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indicator function
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Möbius function
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Kenneth E. Iverson
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