Here's the stuff we found when you searched for "sparse covering"

• Sparse
• Covering your ass
• Sparse Distributed Memory
• Covering
• sparse coding
• Keyboards with a big L-shaped "enter" covering the place Pipe usually is
• Sparse Checkers
• Covering the spread
• sparse file
• covering map
• sparse array
• Vitali covering
• Sparse matrix
• Vitali's covering lemma
• YHWH declares that the substitution of LOVE with FUCK is punishable by AIDS; man responds by covering his member with plastic

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