Small Basic Featured Article - How to Use Trigonometric Functions

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Here's a classic article from Nonki:

Small Basic: How to Use Trigonometric Functions

  

Let's imagine we want to draw an arc.

 
Assume the center of the arc is located at x = 200, y = 300, and the start angle is a1 = -30 and the end angle = -60.
In mathematics, the y axis goes up. But in Small Basic GraphicsWindow, the y axis goes down. So the sine of an angle becomes the opposite:

 Here are the equations:

Read more and get the code here:

Small Basic: How to Use Trigonometric Functions

    

Big thanks to Nonki and his quality articles through the years!

Have a Small and Basic Thanksgiving (or a big stuffed one!)...

   - Turkey Ninja Ed