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Expert · Puzzle #364
3
1
9
8
6
1
3
9
2
6
8
1
7
4
1
2
8
5
7
3
4
4
5
"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