Looking at it should make it pretty easy to spot.
If you know the function, plug in 1.5 and find the Y.
Then +/- the period and you'll have half of the rest of the Y values only along one edge.
Looking at it should make it pretty easy to spot.
If you know the function, plug in 1.5 and find the Y.
Then +/- the period and you'll have half of the rest of the Y values only along one edge.