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|00000000| 5c 73 65 63 74 69 6f 6e | 7b 73 79 6d 6d 20 2d 2d |\section|{symm --|
|00000010| 2d 20 53 79 6d 6d 65 74 | 72 69 63 20 4d 61 74 72 |- Symmet|ric Matr|
|00000020| 69 78 7d 0d 5c 6c 61 62 | 65 6c 7b 66 6e 3a 73 79 |ix}.\lab|el{fn:sy|
|00000030| 6d 6d 7d 0d 5c 69 6e 64 | 65 78 7b 73 79 6d 6d 28 |mm}.\ind|ex{symm(|
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|00000070| 72 69 63 20 70 61 72 74 | 7d 0d 5c 62 65 67 69 6e |ric part|}.\begin|
|00000080| 7b 72 61 69 6c 7d 0d 53 | 79 6d 6d 65 74 72 69 63 |{rail}.S|ymmetric|
|00000090| 20 3a 20 27 73 79 6d 6d | 27 20 27 28 27 20 4d 61 | : 'symm|' '(' Ma|
|000000a0| 74 72 69 78 20 27 29 27 | 20 3b 0d 5c 65 6e 64 7b |trix ')'| ;.\end{|
|000000b0| 72 61 69 6c 7d 0d 0d 5c | 76 65 72 62 2b 73 79 6d |rail}..\|verb+sym|
|000000c0| 6d 2b 20 72 65 74 75 72 | 6e 73 20 74 68 65 20 73 |m+ retur|ns the s|
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|00000250| 44 49 52 2b 20 65 6e 76 | 69 72 6f 6e 6d 65 6e 74 |DIR+ env|ironment|
|00000260| 61 6c 20 76 61 72 69 61 | 62 6c 65 2c 20 6f 72 20 |al varia|ble, or |
|00000270| 6d 6f 64 69 66 79 69 6e | 67 0d 5c 76 65 72 62 2b |modifyin|g.\verb+|
|00000280| 73 79 6d 6d 2e 72 2b 20 | 6d 61 79 20 6d 61 6b 65 |symm.r+ |may make|
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|000002b0| 72 61 67 72 61 70 68 7b | 45 78 61 6d 70 6c 65 7d |ragraph{|Example}|
|000002c0| 0d 5c 69 6e 64 65 78 7b | 65 78 61 6d 70 6c 65 20 |.\index{|example |
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|000002e0| 78 7b 73 79 6d 6d 28 29 | 21 65 78 61 6d 70 6c 65 |x{symm()|!example|
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|00000600| 0d 0d 0d 0d | |.... | |
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