Problem with semilog and low number

Sæll !

I am trying to plot very small number for the Y-axis on semilogy but they do not appear at all unless one of the value is higher
Moreover the labels on the Y axis become 0 below 0.001

semilogy([1.0, 2.3, 3.3],[9.4e-05, 9.4e-05, 9.4e-05]) <-- does not work

[<matplotlib.lines.Line2D instance at 0x935255c>]

semilogy([1.0, 2.3, 3.3],[9.4e-04, 9.4e-05, 9.4e-05]) <--- work

[<matplotlib.lines.Line2D instance at 0x940e964>]

Should I use a specific "long" definition of my floating number ?





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