Fourier

[Eiteamina]

How do u read function out of these 2 graphs?

 

[Deleted member 4993]

View attachment 16974
How do u read function out of these 2 graphs?

Please review:

https://study.com/academy/lesson/step-function-definition-equation-examples.html

and:

https://en.wikipedia.org › wiki › Sawtooth_wave

 

[tkhunny]

Sorry, my Finnish is passable, but my Estonian is not.

You have a graph. Create a Fourier series to describe it. Will you see sines or cosines or both? You'll have to go through the integrals and see unless you can decide if one or the other is odd or even.