Display default minor ticks on the Axis, depending on the scale (get_scale).
Scales use specific minor locators:
LogLocator
SymmetricalLogLocator
AsinhLocator
LogitLocator
AutoMinorLocator
Displaying minor ticks may reduce performance; you may turn them off using minorticks_off() if drawing speed is a problem.
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https://matplotlib.org/stable/api/_as_gen/matplotlib.axis.Axis.minorticks_on.html