Graphing Calculator 3D Polar Equations

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4. Plot Polar Equations

This page explains how to plot a polar equation in Graphing Calculator 3D.

Steps:

1. Select "2D" from the graph dropdown list.
2. Change the coordinates option from "Cartesian" to "Polar" in the dropdown list.
3. Type in a polar equation using variables r and θ.
   • To insert θ press Ctrl+1
   • Alternatively, click on KeyPad tab then click on θ button.

Examples:

Here are some explicit and implicit polar equations you can type in the program:

• r=2θ+1
• θ=r/2
• r^2+θ^2=sin(r+θ)
• r<1+θ

Optional Steps:

• Click on "Graph" tab then click on "Override Default Range" to limit the range of r and θ values.