[ES] Obra basada en la proporción plástica (número radiante), denotado ρ. Los rectángulos son de tres diferentes proporciones: ρ, ρ² y ρ³.
[EN] Artwork based on plastic ratio (radiant number), denoted as ρ. The rectangles are of three different proportions: ρ, ρ² y ρ³.
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