Fourier series graphing tests

[Steve-Matrix]

During the development of the v9.2 update I created various projects to test the updated features. I thought I'd share these two which I developed to test the graphing improvements.

They both show how a square wave can be approximated by adding together a series of sine waves. The "X increment" slider effectively sets the resolution of the graph - lower values give better resolution but are slower to plot (when X increment = 1, values for all 10,000 coordinates are calculated and plotted).

I hope you find these interesting or useful.

square fourier 1.png (200.43 KiB) Viewed 5560 times

square fourier 2.png (149.14 KiB) Viewed 5560 times

[p.erasmus]

Beautiful stuff Steve

[stefan.erni]

Hi Steve

Thanks a lot.

Yes it's a big help, how to use the graf. I will try to display my EKG (heartbeat).

regards

Stefan

[Steve-Matrix]

I will try to display my EKG (heartbeat).

Please post an image if you get this working - it would be great to see!

[stefan.erni]

Hi Steve

The chart is working nice together with Bluetooth to show ECG.
As a sample: Chart with 2 seconds or 20 seconds.

regards

Stefan

ecg_2_2021-08-04_19-11-24.png (47.43 KiB) Viewed 5472 times

ecg_4_2021-08-04_20-03-15.png (178.71 KiB) Viewed 5472 times

[medelec35]

Hi, Stefan.
That looks really good!
I Thought I would mention Steve is on holiday, so I'm not sure when he will be able to read your post.

[Steve-Matrix]

Nice one, Stefan. Looks great!