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Absolutely convex set
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<p>In <a href="/facts/Mathematics/pxTouaz4">mathematics</a>, a <a href="/facts/Subset/SJGERmbA">subset</a> <i>C</i> of a <a href="/facts/Real_number/R02gw5Pb">real</a> or <a href="/facts/Complex_number/2w7mqI7e">complex</a> <a href="/facts/Vector_space/M1pxMLx2">vector space</a> is said to be absolutely convex or disked if it is <a href="/facts/Convex_set/vdAuJRJl">convex</a> and <a href="/facts/Balanced_set/Y2ar7E6g">balanced</a> (some people use the term "circled" instead of "balanced"), in which case it is called a disk. The disked hull or the absolute convex hull of a set is the <a href="/facts/Intersection_(set_theory)/RPfUNJh9">intersection</a> of all disks containing that set. </p>