Computation times

00:02.096 total execution time for 3 files from auto_examples/signals:

Example	Time	Mem (MB)
Wavy signal generation (plot_wavy_signals.py)	00:01.393	0.0
Univariate Polynomial (plot_univariate_polynomial.py)	00:00.362	0.0
Inserting gaps in a time series (plot_synthetic_gaps.py)	00:00.342	0.0