<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd"> <pkgmetadata> <maintainer type="project"> <email>sci@gentoo.org</email> <name>Gentoo Science Project</name> </maintainer> <longdescription lang="en"> uncertainties is a Python module, which allows calculations such as . (0.2 +/- 0.01) * 2 = 0.4 +/- 0.02 . to be performed transparently; much more complex mathematical expressions involving numbers with uncertainties can also be evaluated transparently. Correlations between expressions are correctly taken into account; x-x is thus exactly zero, for instance. The uncertainties produced by this module are what is predicted by error propagation theory. </longdescription> <upstream> <remote-id type="pypi">uncertainties</remote-id> </upstream> </pkgmetadata>