Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Shot of Bill Gates speaking to the camera. BILL GATES: People make decisions every day. For example, ...

When I first learned to program, it was grasping if statements that helped it all click into place for me. Once you can use if statements, you can build all kinds of useful and interesting tools.

Excel functions, or formulas, lie at the heart of the application’s deep well of capabilities. Today we’ll tackle IF statements, a string of commands that determine whether a condition is met or not.