The women behind "Moebius Noodles: Adventurous Math for the Playground Crowd" are back with another fun math game they call Function Machines. I introduced Maria Droujkova and Yelena McManaman last ...

Messages can solve simple math equations like "2+2=" by typing them into the text field. The app can also solve equations that use more complex formulas, such as the trigonometric functions of sine, ...