Better support of incommensurate data series #3020

I want to use Google Charts' JS API to graph, on the same set of axes, multiple data series of different lengths and with different, intermingled abscissae. Example: results of applying Euler's method over a fixed domain split into, say, 33 and 100 intervals. Presently, as near as I can find*, the only way to do this is to create a 133 row x 3 column data table, with all the x values for both series in the first column, and the y values for each series in the other columns, with null or NaN in the rows corresponding to x values which aren't present in the respective series. This is excessively difficult to implement for data series of arbitrary, different lengths; not to mention just plain inelegant and klugey. One should really be able to simply "say": "here are the ordered pairs in each of my series: plot them." And ideally, one could create a plot with one data series, and then addSeries subsequently (being obliged to redraw if series are added after the initial draw, of course). (*If I am mistaken and it is already possible to do this via the JS API, I apologize: please point me to pertinent documentation, because I have been looking, unsuccessfully, for hours).