On Saturday, 17 September 2016 17:13:05 UTC-4, Anoz wrote:
> I'm trying to plot the graph ln(1+x/1-x) how do I do this on sagemath , I 
> just need the correct syntax.

I have just tried this on my newly installed sage7.3 on my new computer 
with Ubuntu16.04. 
P=plot(log((1+x)/(1-x)), (x, -1,1))
Graphics object consisting of 1 graphics primitive
gives a lengthy error message which ends with
ImportError: cannot import name scimath

I installed sage at /home/jack/Tools

One clue might be the initial message I get on initiating sage in a 
terminal. It reads:

sys:1: RuntimeWarning: not adding directory '' to sys.path since everybody 
can write to it.
Untrusted users could put files in this directory which might then be 
imported by your Python code. As a general precaution from similar 
exploits, you should not execute Python code from this directory
Since I am the only user of this desktop computer I am not too concerned :-)

Best regards to the sage community,
                                                          Jack Fearnley

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