subduple

English

Etymology

sub- +‎ duple

Adjective

subduple (not comparable)

1. (mathematics) Indicating one part of two; in the ratio of one to two.

   Synonym: subdouble

   3:6 is a subduple ratio, while 6:3 is a duple ratio.

   • 1648, John Wilkins, Mathematical Magick:

     As one of these under pulleys abates half of that heaviness of the weight, and causes the power to be in a subduple proportion; so two of them abate half of that which remains, and cause a subquadruple proportion, three a sextuple, four a suboctuple.

Translations

indicating one part of two

• French: sous-double (fr)
• Italian: sottodoppio
• Latin: subduplus, subduplex