Polar and Spherical Coordinates
New, dedicated functions are available to convert between Cartesian and the two most important non-Cartesian coordinate systems: polar coordinates and spherical coordinates.
Convert between Cartesian and polar coordinates.
In[1]:=

ToPolarCoordinates[{x, y}]Out[1]=

In[2]:=

FromPolarCoordinates[{r, \[Theta]}]Out[2]=

Convert between Cartesian and spherical coordinates.
In[3]:=

ToSphericalCoordinates[{x, y, z}]Out[3]=

In[4]:=

FromSphericalCoordinates[{r, \[Theta], \[CurlyPhi]}]Out[4]=

Polar coordinates naturally generalize to higher dimensions.
In[5]:=

ToPolarCoordinates[{w, x, y, z}]Out[5]=

In[6]:=

FromPolarCoordinates[{r, \[Theta]1, \[Theta]2, \[Theta]3, \
\[CurlyPhi]}]Out[6]=

Plot curves expressed in polar and spherical coordinates.
In[7]:=

ParametricPlot[
 FromPolarCoordinates[{Exp[-t/10], t}] // Evaluate, {t, 0, 50}, 
 PlotRange -> All]Out[7]=

In[8]:=

ParametricPlot3D[
 FromSphericalCoordinates[{1, TriangleWave[{0, Pi}, p/(2 Pi)], p}] // 
  Evaluate, {p, 0, 2 Pi}]Out[8]=

















 
  
  
  
  
  
  
 