| @@ 57-67 (lines=11) @@ | ||
| 54 | * |
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| 55 | * @return Row |
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| 56 | */ |
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| 57 | public function getRow($offset) |
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| 58 | { |
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| 59 | if (!array_key_exists($offset, $this->rows)) { |
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| 60 | throw new \InvalidArgumentException(sprintf( |
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| 61 | 'There is no row in this matrix with that offset: %s', |
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| 62 | $offset |
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| 63 | )); |
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| 64 | } |
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| 65 | ||
| 66 | return $this->rows[$offset]; |
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| 67 | } |
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| 68 | ||
| 69 | /** |
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| 70 | * @return Row[] |
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| @@ 114-124 (lines=11) @@ | ||
| 111 | * |
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| 112 | * @return Column |
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| 113 | */ |
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| 114 | public function getColumn($offset) |
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| 115 | { |
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| 116 | if (!array_key_exists($offset, $this->columns)) { |
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| 117 | throw new \InvalidArgumentException(sprintf( |
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| 118 | 'There is no column in this matrix with that offset: %s', |
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| 119 | $offset |
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| 120 | )); |
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| 121 | } |
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| 122 | ||
| 123 | return $this->columns[$offset]; |
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| 124 | } |
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| 125 | ||
| 126 | /** |
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| 127 | * @return Column[] |
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| @@ 50-60 (lines=11) @@ | ||
| 47 | * |
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| 48 | * @return Element |
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| 49 | */ |
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| 50 | public function getElement($offset) |
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| 51 | { |
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| 52 | if (!array_key_exists($offset, $this->elements)) { |
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| 53 | throw new \InvalidArgumentException(sprintf( |
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| 54 | 'There is no element in this vector with that offset: %s', |
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| 55 | $offset |
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| 56 | )); |
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| 57 | } |
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| 58 | ||
| 59 | return $this->elements[$offset]; |
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| 60 | } |
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| 61 | ||
| 62 | /** |
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| 63 | * @return Element[] |
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