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<h2 class="hd hd-2 unit-title">2.2 Session Overview</h2>
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<p>As we learned last session, vectors don't have to be lists of numbers. In this session we explore important new vector spaces while practicing the skills we learned in the old ones. Then we begin the application of matrices to the study of networks.</p>
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<h2 class="hd hd-2 unit-title">Lecture Video</h2>
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<h3 class="hd hd-2">Matrix Spaces; Rank 1; Small World Graphs</h3>
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<p><a href="/assets/courseware/v1/dec103870337e07986ed64318c8b3bc4/asset-v1:OCW+18.06SC+2T2019+type@asset+block/18.06_2.2_LecTrans.pdf" target="[object Object]">Lecture video transcript (PDF)</a></p>
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<h2 class="hd hd-2 unit-title">Lecture Summary and Reading</h2>
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<h3>Lecture Summary</h3>
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<h3>Suggested Reading</h3>
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<li>Read Section 3.3 and 8.2 in the 4<sup>th</sup> edition or Section 3.3 and 10.1 in the 5<sup>th </sup>edition.</li>
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<p>Work the problems on your own and check your answers when you're done.</p>
<p><a href="/assets/courseware/v1/66fdec4b2aa55ffcf5d67f5c77a767a5/asset-v1:OCW+18.06SC+2T2019+type@asset+block/18.06_2.2_Exercises.pdf" target="[object Object]">Exercises on matrix spaces; rank 1; small world graphs (PDF)</a></p>
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