Chris Angelico wrote:
If units are retained, what you have is no longer a simple number, but a value with a unit, and is a quite different beast. (For instance, addition would have to cope with unit mismatches (probably by throwing an error), and multiplication would have to combine the units (length * length = area).)
And that can be surprisingly tricky. For example, newtons times metres equals joules -- but *only* if the force and the distance are in the same direction, otherwise it's torque rather than energy and the units are just newton-metres. -- Greg _______________________________________________ Python-ideas mailing list Python-ideas@python.org https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/
