Physical Constants

The constants from GSL are reworked with the type const double and placed in namespaces called o2scl_cgs, o2scl_cgsm, o2scl_mks, and o2scl_mksa. The numerical constants from gsl_num and some other additional constants are given in the namespace o2scl_const.

Some of the numerical values have been updated from recently released data. Electron, neutron, proton, and atomic mass have been updated with CODATA 2010 values. Also electron charge, gravitational constant, plancks_constant_hbar, are updated. The astronomical unit has been updated with the result from Luzum11 (and possibly other values need updating as well).

These physical constants are often used to create unit conversion factors, described in Unit Conversions.

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