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 | 1 | initial version |
Try the exclude optional argument to plot to tell sage to ignore specific points not in the domain of the function, e.g.
plot(arcsec(x), (x,-8,8), exclude=[-1,1])
Note that this option technically just excludes the poles at x=-1 and x=1 but Sage gracefully ignores the points in between which are not in the domain.
