We are looking for something that is professional but a little nerdy, to hearken to our mathematical and scientific roots. Our goal is to convey a sense of elegant coherence in the face of large datasets and streams of data. We want scientists and data analysts to feel like we understand their problems (“we are one of them”), while traditional business analysts that lean heavily on Excel are not intimidated by us being too mathematically advanced or nerdy.
For instance, we would not be adverse to Greek letters and symbology, but would prefer the lowercase script form versus blocky caps.
Additionally, a regular grid or matrix of elements would help convey the array- or tabular-oriented nature of our problem domain, and done artfully, could also help connote a "continuum" as they merge or fade into a continuous whole. The old Xerox logo (attached) is an example. Also, doing a Google image search for "graphic equalizer volume bars" shows many good, visually appealing examples of stacked, repeated small elements forming arrays. (Some examples we liked are also attached.)
One final note: Waves are a great example of a continuum comprised of small elements, and they also have a good energy and momentum to them. I've attached some pictures of waves that I find particularly appealing.