44 lines
2.5 KiB
XML
44 lines
2.5 KiB
XML
<svg width="380" height="170" xmlns="http://www.w3.org/2000/svg">
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<defs>
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<marker id="bt-arr" markerWidth="7" markerHeight="5" refX="7" refY="2.5" orient="auto">
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<path d="M0,0 L7,2.5 L0,5" fill="#999"/>
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</marker>
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<marker id="bt-r" markerWidth="7" markerHeight="5" refX="7" refY="2.5" orient="auto">
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<path d="M0,0 L7,2.5 L0,5" fill="#e74c3c"/>
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</marker>
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<marker id="bt-b" markerWidth="7" markerHeight="5" refX="7" refY="2.5" orient="auto">
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<path d="M0,0 L7,2.5 L0,5" fill="#3498db"/>
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</marker>
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</defs>
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<!-- Left: standard basis -->
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<text x="70" y="14" text-anchor="middle" fill="#333" font-size="11" font-weight="bold">Before</text>
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<line x1="20" y1="150" x2="150" y2="150" stroke="#ccc" stroke-width="1" marker-end="url(#bt-arr)"/>
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<line x1="20" y1="150" x2="20" y2="25" stroke="#ccc" stroke-width="1" marker-end="url(#bt-arr)"/>
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<circle cx="20" cy="150" r="3" fill="#333"/>
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<!-- i hat -->
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<line x1="20" y1="150" x2="88" y2="150" stroke="#e74c3c" stroke-width="2.5" marker-end="url(#bt-r)"/>
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<text x="58" y="145" fill="#e74c3c" font-size="11" font-weight="bold">i</text>
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<!-- j hat -->
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<line x1="20" y1="150" x2="20" y2="82" stroke="#3498db" stroke-width="2.5" marker-end="url(#bt-b)"/>
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<text x="12" y="112" fill="#3498db" font-size="11" font-weight="bold">j</text>
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<!-- Arrow -->
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<text x="185" y="85" text-anchor="middle" fill="#333" font-size="18">→</text>
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<text x="185" y="102" text-anchor="middle" fill="#666" font-size="10">A =</text>
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<text x="185" y="115" text-anchor="middle" fill="#666" font-size="10">[col1 | col2]</text>
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<!-- Right: transformed basis -->
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<text x="310" y="14" text-anchor="middle" fill="#333" font-size="11" font-weight="bold">After</text>
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<line x1="230" y1="150" x2="370" y2="150" stroke="#ccc" stroke-width="1" marker-end="url(#bt-arr)"/>
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<line x1="230" y1="150" x2="230" y2="25" stroke="#ccc" stroke-width="1" marker-end="url(#bt-arr)"/>
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<circle cx="230" cy="150" r="3" fill="#333"/>
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<!-- transformed i (column 1, e.g. [2,1]) -->
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<line x1="230" y1="150" x2="350" y2="100" stroke="#e74c3c" stroke-width="2.5" marker-end="url(#bt-r)"/>
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<text x="305" y="115" fill="#e74c3c" font-size="11" font-weight="bold">Ai</text>
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<!-- transformed j (column 2, e.g. [1,2]) -->
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<line x1="230" y1="150" x2="280" y2="50" stroke="#3498db" stroke-width="2.5" marker-end="url(#bt-b)"/>
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<text x="248" y="85" fill="#3498db" font-size="11" font-weight="bold">Aj</text>
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<text x="185" y="165" text-anchor="middle" fill="#666" font-size="10">columns of A = where i and j land</text>
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</svg> |
