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Expert · Puzzle #544
5
2
7
1
3
5
9
7
3
6
2
7
2
5
3
9
4
4
2
3
8
9
9
4
2
8
7
"Mathematics is not about numbers, equations, or algorithms — it is about understanding." — William Paul Thurston
"Mathematics is not about numbers, equations, or algorithms — it is about understanding." — William Paul Thurston
"Mathematics is not about numbers, equations, or algorithms — it is about understanding." — William Paul Thurston
"Mathematics is not about numbers, equations, or algorithms — it is about understanding." — William Paul Thurston