2D Polar issue?

gaetano

Hello,
maybe there is a bug in Entry->2D->Polar.
If a number is entered the graph is shown in rectangular coordinates rather than polar ones as well as the legend on the right. E.g. entering 5 the graph results in a straight line instead of a circumference.
PolarPlot works fine

Thank you in advance
Gaetano

Desa

Hi Gaetano,

You want to do PolarPlot(5) in that case or enter the number first and then press Entry -> Polar.

If you don't use a plot function SpaceTime determines the graph type based on the variable used. Function (x), Parametric (u), Polar (theta) so if you just use a number SpaceTime will default to a function graph when you evaluate it using the Plot button.

gaetano

Thank you very much Chris.
So, as a rule of thumb I can assume that the "Entry" commands act on the argument already inserted into an entry, correct?

Gaetano

Desa

Hi Gaetano,

Yes, it's basically a more specific version of the Plot button. So, with Plot you just tell SpaceTime to plot the equation but with when you press Polar you are telling SpaceTime to plot a polar equation.

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