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Interval package: Difference between revisions
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→Boolean operations
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=== Boolean operations === | === Boolean operations === | ||
Interval comparison operations produce boolean results. While some comparisons are especially for intervals (subset, interior, ismember, isempty, disjoint, …) others are extensions of simple numerical comparison. For example, the less (or equal) comparison is mathematically defined as ∀<sub>''a''</sub> ∃<sub>''b''</sub> ''a'' ≤ ''b'' ∧ ∀<sub>''b''</sub> ∃<sub>''a''</sub> ''a'' ≤ ''b''. | |||
octave:1> infsup (1, 3) <= infsup (2, 4) | |||
ans = 1 | |||
=== Error handling === | === Error handling === | ||