- 1960. The most
recent prefixes adopted were ronna-, quetta-, ronto-, and
quecto- in 2022,
after a
proposal from
British metrologist Richard J. C. Brown...
- for <cmath> and <complex>
Adding the new 2022 SI
prefixes on ratios: std::
quecto, std::ronto, std::ronna, and std::quetta std::copyable_function std::submdspan()...
- (see
Atomic unit of
electric dipole moment, NIST.) With a
value of 10−30,
quecto- is the
smallest SI prefix,
accepted as an SI
prefix by the CGPM on 18 November...
- 10−18 (atto), 10−21 (zepto), 10−24 (yocto), 10−27 (ronto), and 10−30 (
quecto).
Although formerly in use, the SI
disallows combining prefixes; the *microkilogram...
-
prefix for 1030 is Quetta- (Q), and for 10−30 (i.e., the
reciprocal of 1030)
quecto (q).
These numbers are the
largest and
smallest number to
receive an SI...
-
decimal prefixes has been
extended to
those for 1030 (quetta–) and 10−30 (
quecto–).
Outline of
metrology and
measurement Binary prefix, used in computer...
- 000000000000000000000001
ronto r 10−27 0.000000000000000000000000001 2022
quecto q 10−30 0.000000000000000000000000000001
Notes Prefixes adopted before 1960...
-
December 2022 to
include the new SI
prefixes ronna-, quetta-, ronto- and
quecto-
introduced in
November 2022.
History of the
metre Institute for Reference...
- 000000000000000000000001
ronto r 10−27 0.000000000000000000000000001 2022
quecto q 10−30 0.000000000000000000000000000001
Notes Prefixes adopted before 1960...
- Prefix name N/A deci
centi milli micro nano pico
femto atto
zepto yocto ronto quecto Prefix symbol d c m μ n p f a z y r q
Factor 100 10−1 10−2 10−3 10−6 10−9...
