Those skyrocketing curves tell an alarming story. But logarithmic graphs can help reveal when the pandemic begins to slow. By Kenneth Chang The arc of coronavirus cases in Italy is frightening, ...

Microsoft's Excel spreadsheet program includes a Chart Wizard for making a variety of graphs from tabulated data. In some situations, as with scientific experiments, the data in one or both axes of ...

I maintain that historical price charts are great for predicting the past. This is meant to sound like a joke but it isn’t. Price charts are maps and maps give people a guide to the future because ...