Help with Question

[sallyk57]

I was wondering what this question is asking me to do..

What is the periodic behavior of the EKG as a function of time?

Can someone tell me what do they mean by periodic behavior? Thanks

 

[pka]

Can someone tell me what do they mean by periodic behavior?

Essentially it means that the values of the function repeat themselves in uniform intervals. The graphs are identical in periods, that is they repeat in a regular manner.