Of, relating to, or having the form or structure of a hexahedron; having six faces.
From 'hexahedron' plus the adjectival suffix '-al' (relating to). Became standardized in mathematical terminology during the Renaissance geometric revival.
Finite element analysis—the computer simulation method used in engineering—divides objects into tiny hexahedral elements because six-faced shapes pack perfectly in 3D space, making calculations super efficient.
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