Computation times

00:04.500 total execution time for 10 files from gallery/units:

Example	Time	Mem (MB)
Ellipse with units (ellipse_with_units.py)	00:00.935	0.0
Radian ticks (radian_demo.py)	00:00.699	0.0
Inches and centimeters (units_sample.py)	00:00.690	0.0
Bar demo with units (bar_demo2.py)	00:00.539	0.0
Evans test (evans_test.py)	00:00.444	0.0
Unit handling (units_scatter.py)	00:00.365	0.0
Group barchart with units (bar_unit_demo.py)	00:00.311	0.0
Annotation with units (annotate_with_units.py)	00:00.274	0.0
Artist tests (artist_tests.py)	00:00.238	0.0
Basic units (basic_units.py)	00:00.007	0.0