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## FromMma

Another example of the FromMma conversion, from a recent forum post,

```convert("Show[Plot[
Piecewise[{{0, x < -0.5}, {1/5, x < 1.3}, {2/5, x < 1.7}, {3/5,
x < 2}, {4/5, x < 2.8}, {1, x > 2.8}}], {x, -2, 5},
Ticks -> {{-0.5, 1.3, 1.7, 2, 2.8}, {1/5, 2/5, 3/5, 4/5, 1}},
PlotStyle -> {Thickness[0.01]}],
ListPlot[{{-0.5, 1/5}, {1.3, 2/5}, {1.7, 3/5}, {2, 4/5}, {2.8, 1}},
PlotStyle -> PointSize[0.03]]]",FromMma);

Warning, The options, [Ticks -> [[-.5, 1.3, 1.7, 2, 2.8],
[1/5, 2/5, 3/5, 4/5, 1]]], are not translated and
are being ignored

plots[display](plot(Piecewise([[0, x < -0.5], [1/5, x < 1.3],

[2/5, x < 1.7], [3/5, x < 2], [4/5, x < 2.8], [1, 2.8 < x]]),

x = -2 .. 5, thickness = [6]), plots[listplot](

[[-0.5, 1/5], [1.3, 2/5], [1.7, 3/5], [2, 4/5], [2.8, 1]],

style = POINT, symbol = CIRCLE, symbolsize = [18],

symbol = [CIRCLE]))

eval(%);

Warning, unable to evaluate the function to numeric values
in the region; see the plotting command's help page
to ensure the calling sequence is correct

Error, (in plot/options2d) expecting option symbol to be of type
identical(asterisk,box,cross,circle,diagonalcross,diamond,
point,solidcircle,solidbox,soliddiamond,solidsphere,