In the tutorials so far in this course, you've used functions many times. In this tutorial, you'll see how to create new ones!
are you referring to the floats data type?
for the greet() function, line 15 and 16 are not clear to me even after reading the comments.
why would 15 greet("Alice", greeting="Hello") execute and 16 greet(name="Alice", "Hello") give error