Suppose that I have a plot:
plot(sin((1/180)*Pi*x), x = -180 .. 180)
I want to add a degree symbol after the tickmarks on the x-axis. One approach which seem promising is to add a plot option for the x-axis:
axis = [tickmarks = [90 = typeset("90", degree)]]
where "degree" is replaced by a code for the degree symbol. Maple is helpful here because I can point and click using the Common Symbols palette and insert a degree symbol. However this does not work delivering an error "Error, invalid neutral operator". This error is undocumented.
I can insert a Pi or an infinity symbol. If I want to I can put a degree sysmbol into ther title, but apparently not on the axes.