3.2.2.1.1. scipy.constants.value¶

scipy.constants.value(key)[source]¶

Value in physical_constants indexed by key

Parameters:	key : Python string or unicode Key in dictionary physical_constants
Returns:	value : float Value in physical_constants corresponding to key

See also

codata

Contains the description of physical_constants, which, as a dictionary literal object, does not itself possess a docstring.

Examples

>>> from scipy import constants
>>> constants.value(u'elementary charge')
    1.6021766208e-19