A team of researchers has built a tool that maps how cities actually function — using nothing but anonymous cell phone data.

Here's what you can now do with graphics in Claude and ChatGPT.

The currency value of the SDR is determined by summing the values in U.S. dollars, based on market exchange rates, of a basket of major currencies (the U.S. dollar, Euro, Japanese yen, pound sterling ...

Exchange Rate Query Tool - This query tool allows the user to retrieve exchange rates data from the IMF rates database, and view, print, or save the data.