@@ 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[] |
@@ 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[] |