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lines changed Original file line number Diff line number Diff line change @@ -94,6 +94,12 @@ The following bugs have been fixed in this release:
9494* `singular_values_plot `: color cycling was not working correctly when
9595 a list of systems or responses was provided.
9696
97+ * `nyquist_plot `: The `lines ` parameter of the `ControlPlot ` object
98+ now matches the documentation. A 2D array is returned with the
99+ first index corresponding to the response (system) index and the
100+ second index corresponding to the segment type (primary, mirror x
101+ unscaled, scaled).
102+
97103
98104Improvements
99105............
@@ -198,6 +204,16 @@ were implemented in this release:
198204 `~matplotlib.pyplot.streamplot ` function to provide better default
199205 phase plane diagrams.
200206
207+ * `root_locus_plot `: added by the ability to recompute the root locus
208+ when zooming in on portions of the root locus diagram.
209+
210+ * `nyquist_plot `: updated the rescaling algorithm to use a more
211+ gradual change in the magnitude of the Nyquist curve. The
212+ `blend_fraction ` parameter can be used to start the rescaling prior
213+ to reaching `max_curve_magnitude `, giving less confusing plots. Some
214+ default parameter values have been adjusted to improve Nyquist
215+ plots.
216+
201217
202218Deprecations
203219............
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