W/A error: why W/A shows the graph of tan θ = 5 as a circle of radius 5 with center at (0,0)?

[Steven G]

Does any one understand a reason why W/A shows the graph of tan θ = 5 as a circle of radius 5 with center at (0,0)?
I would think that it is just the line y=5x.

 

[Dr.Peterson]

Does any one understand a reason why W/A shows the graph of tan θ = 5 as a circle of radius 5 with center at (0,0)?
I would think that it is just the line y=5x.

Please show what you entered, and what you got. I got this:



I assume it depends on some detail of your request.

 

[Dr.Peterson]

Okay, now I see it:


That is interesting; somehow it's plotting r = 5.

With a little more experimenting, it looks like it fails to understand polar equations that lack r; sometimes, at least, it seems to replace theta, or any function of it, with r.