When are We Ever Going to Use This?

Greetings!

You know how we all used to say in math class, "When are we ever going to use this in real life?" 

Well, all of you, tanglers, out there read closely because we do use complicated math (e.g. trigonometry, or polar coordinates to be exact) in our everyday life.

How? Look for yourself!

2 + 3 cos (3θ) = r

1 + 4 cos (4θ) = r

2 + 2 cos (6θ) = r
4 + 4 cos (6θ) = r
0.5 + 0.5 cos (6θ) = r

If you have those handy dandy graphing calculator( preferably TI-83 or TI-84 series) from high school or college, take them out and get ready to learn how to do this tangles on your calculators.

As you can see, each picture has equations written at the bottom. Remember or write them down! These equations are the most important part of this task besides the graphing calculator, obviously. 

How to do these tangles on calculator?

Step 1

Press MODE button.

Step 2

Go down to the 4th line and
press the Enter button on POL.

Step 3

Instead of 1-sin(θ), type "2 + 3 cos (3θ)".
 

Do the same thing with the other equations to form tangles on the calculator using Step 3. I, very much, enjoyed this little exercise when I was in my Trigonometry class this summer; although, we did different patterns. See, math can be fun sometimes. 

Below is a picture of some patterns we use in our Zentangle Inspired Artworks.

I hope you enjoyed this exercise as much as I did.

Until next time,

Kay