Polar Graphing

CalcES supports multiple types of graphs, including Polar graphing. For example, you can graph a sine function in polar coordinates using the syntax Sin(t), where t is the angle.

Syntax

Entering expression with t variable will treat as polar function.

Example

Example: 1−2Sin(t)

Settings

1. Remember change the angular unit to RAD

2. Enable “Polar coordinate” option in Settings to draw graphs on Polar coordinate

   
   

3. Set the polar start, stop and steps if needed. The default values is start=0, stop=2Pi, step=0.1

   

Features

Tangent

Enable Tangent and Trace options to display tangent of polar graph at a specific point

Variable tracing

Enable TraceVar option to display a slider, use this slider to change the value of the t variable

Calculate value at a given point

Tap Calc button to show the calculation panel

Enter the value of t in the t= field, and then tap Calculate to calculate graph properties.

Table of values

1. Tap Table button to show the table panel, it displays the table of values.

   

2. The left column is t values, and the right colum is r(t) values

   

Other features

Multiple graphs

Using : to separate between graphs.

Example

Example: 2−2Sin(t):3Cos(3t)

Tap GRAPH to draw graphs.