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Number Sets - Coggle Diagram
Number Sets
Natural, integer, rational, irrational and real numbers
Natural Numbers (N) → counting objects → Eg: 1, 2, 3...
Rational Numbers (Q) → are expressed as a fraction → Eg: 1/2, -3/4, 0.75
Irrational Numbers (I) → non-periodic infinite decimals → Eg: √2, π, e
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Integers (Z) → natural + negative + 0 → Eg: -3, -2, 0, 1...
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Inequalities, real intervals and absolute value
Inequalities → compare values (>, <, ≤, ≥)
Ex: 5 < 10
x + 3 > 7
2y ≤ 10
Real intervals
Open: (-∞, 2)
Closed: [3, 7]
Half-open: (0, 4]
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Modular arithmetic
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Applications
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Programming (indexes, loops)
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