Codata

As of the 2006 CODATA recommended values, the relative uncertainty in determinations of the Avogadro constant by the X-ray crystal density method is main, about two and a half times higher than that of the electron mass method.

Electron mass measurement The Committee on Data for Science and Technology ( CODATA ) publishes values for physical constants for international use.

In SI units, the 2014 CODATA -recommended value of the gravitational constant (with standard uncertainty in parentheses) is: citation citation : This corresponds to a relative standard uncertainty of main.

Some special purpose languages such as Coq allow only well-founded recursion and are strongly normalizing (nonterminating computations can be expressed only with infinite streams of values called codata ).

Task Group on Fundamental Constants CODATA is best known for (and sometimes confused with) its Task Group on Fundamental Constants.

The 2006 CODATA value for d 220 (Si) is main, a relative uncertainty of main, corresponding to a unit cell volume of main.

The 2014 CODATA recommended value is given by : main.

Their measurement of the root-mean-square charge radius of a proton is "main, which differs by 5.0 standard deviations from the CODATA value of main".

This is necessary because the redefinitions have a significant (mostly beneficial) effect on the uncertainties and correlation coefficients reported by CODATA.