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Question: How can I plot the volume of revolution of the region between y=ln(x),y=-ln(x) on [1,e]?

Question:How can I plot the volume of revolution of the region between y=ln(x),y=-ln(x) on [1,e]?

yegan 65 Maple 13
plot volume
July 01 2015
0

How can I plot the volume of revolution of the region between the curves y=ln(x) and y=-ln(x)on the interval [1,e]

around the y-axis.please specify the command. I used the command: VolumeOfRevolution(ln(x),-ln(x), x=1..e, scaling=constrained,axis=vertical,output=plot). But this command only plots the revolution of the curves not the region between them.

Best Regards

Yegan 
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