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Full Version: Graph show at times and not at others
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When I draw the polar equation r=1/cosx+sinx sometimes the graph line can be seen but other times the blue graph line can't be seen. The weird thing is that when I select the trace option the cursor stays on the "invisible" graph line but I just can't see the colored version of the line.

Thank you,
Vedant Singh
I've zoomed in with the + and - keys, pinching the touchscreen, autoscaling, going into plot setup and setting the size, box zoom, decimal zoom ... you name it. The graph never disappeared for me. What version of the software do you have? The latest one is 10637; I recommend you get that.
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