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January 12, 2017 19:43
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▤ tables & ℳ matrix
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| user=> (def m1 [{:a 1 :b 2 :c 3} {:a 4 :b 5 :c 6} {:a 7 :c 9 :b 8 :d 10}]) | |
| #'user/m1 | |
| user=> (vec (for [m m1] ((juxt :a :b :c) m))) | |
| [[1 2 3] [4 5 6] [7 8 9]] |
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| user=> (pprint (vec (repeat 8 (vec (repeat 6 0))))) | |
| [[0 0 0 0 0 0] | |
| [0 0 0 0 0 0] | |
| [0 0 0 0 0 0] | |
| [0 0 0 0 0 0] | |
| [0 0 0 0 0 0] | |
| [0 0 0 0 0 0] | |
| [0 0 0 0 0 0] | |
| [0 0 0 0 0 0]] | |
| nil |
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