Log and Log-Log Plots

Options for both Log and Log-Log plots are listed on the Axes page of the Plot Properties tabbed dialog. Power functions f (x) = axn plot as straight lines on a Log-Log coordinate system since log(f (x)) = log(axn) = ln a + n ln x is of the form Y = A + MX.

$\blacktriangleright$ Plot 2D + Rectangular, set Axes Scaling to Log-Log, Domain Interval 0.1 < x < 1.1

5x2/3

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Exponential functions f (x) = cbx plot as straight lines on a Log coordinate system because log f (x) = x log b + log c = Bx + C.

$\blacktriangleright$ Plot 2D + Rectangular, set Axes Scaling to Log

y = 5×2x

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