Fix L-curve plotting
There was an error related to LaTeX formatting of the axis labels (at least on my machine) and then a warning that caused the plot not to show. This MR fixes those two problems.
Maintenance scheduled for Tuesday, December 23, from 5 PM to 7 PM ET.
There was an error related to LaTeX formatting of the axis labels (at least on my machine) and then a warning that caused the plot not to show. This MR fixes those two problems.