Using desmos for Polar equations and the table feature

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SUMMARY

The discussion focuses on using the Desmos graphing calculator to plot polar equations, specifically the equation $r=-2-3\sin(\theta)$ for $0<\theta<2\pi$ at intervals of $\frac{\pi}{12}$. Users discovered that Desmos does not support direct input of polar coordinates into its table feature. Instead, they recommend calculating the corresponding Cartesian coordinates using Google Sheets and then importing these values into Desmos for accurate plotting.

PREREQUISITES
  • Understanding of polar coordinates and equations
  • Familiarity with the Desmos graphing calculator
  • Basic knowledge of Google Sheets for data manipulation
  • Ability to convert polar coordinates to Cartesian coordinates
NEXT STEPS
  • Learn how to convert polar coordinates to Cartesian coordinates
  • Explore advanced features of the Desmos graphing calculator
  • Investigate the use of Google Sheets for mathematical data analysis
  • Study polar equations and their graphical representations
USEFUL FOR

Students, educators, and mathematicians interested in graphing polar equations, as well as anyone looking to enhance their skills in using Desmos and Google Sheets for mathematical visualization.

karush
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Just couldn't find help with this anywhere but
Using the desmos graphing calculator using the table feature
I wanted to plot the points every $\frac{\pi}{12}$
$0<\theta<2\pi$
For $r=-2-3\sin(\theta)$

On a polar coordinate graph
 
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karush said:
Just couldn't find help with this anywhere but
Using the desmos graphing calculator using the table feature
I wanted to plot the points every $\frac{\pi}{12}$
$0<\theta<2\pi$
For $r=-2-3\sin(\theta)$

On a polar coordinate graph

Hi karush,

It seems that Desmos doesn't allow directly inserting $r$ and $\theta$ values to its table feature. A way around this is to get the relavant $x$ and $y$ coordinates using something like Google Sheets and then copy these values to Desmos. This way you can get the plot you need. Here is what I came up with.

https://docs.google.com/spreadsheets/d/1zrJdX-Y_w5oi3Kvzofnit-Y6T1Lm6gK7UeYCS2phxfo/edit?usp=sharing

https://www.desmos.com/calculator/yodbtozedw
 

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