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白銀比 (はくぎんひ) Japanese meaning | Kotomora

白はく銀ぎん比ひ

Meanings

1

noun

silver ratio

mathematics

Mathematical term for the ratio 1:√2, used in paper sizes and design. Also known as the silver mean or silver constant.

白はく銀ぎん比ひは、A判ばんやB判ばんの紙かみの縦たて横よこ比ひとして知しられている。
The silver ratio is known as the aspect ratio of A-series and B-series paper.

Kanji

白white
銀silver
比compare, race, ratio

Similar words

黄おう金ごん比ひ
黄金比 (golden ratio, about 1:1.618) is more widely known in art and nature, while 白銀比 is the silver ratio (1:√2) common in paper sizes.

Etymology

From 白銀 (silver) + 比 (ratio). The term is a direct calque of the English 'silver ratio', referring to the metallic mean analogous to the golden ratio.