I was watching a video on functional programming and the speaker was introducing functional programming notation for functions:
". . . if g(a) is a function g with variable a, we can write it also as g a . . . now, this looks like g times a and this would still be true if g were a linear equation . . ."
What does he mean by this? Why is g(a) the same as g times a if g is a linear equation? Or am I misinterpreting him? Here's the link: http://youtu.be/ZhuHCtR3xq8 (Starting at ~12:30)