00:01
Okay, so the grid is going to be four, right? so we have to divide this into squares like this.
00:13
It's the one, one half, three half, half, three half, and the right corners are these.
00:27
We're going to need these four function values, okay? so all we have to do now is, so the delta x is equal to delta y, which is equal to two over four, which is half, okay? so this is delta y, and this is delta x.
00:49
Okay, so one half times one half, and then the heights, and then we're just going to plug everything in.
01:01
Okay, so we're just going to, you know, plug those, like let me do one of them for you, 14 .8 minus one over two square minus 1 .8 times one over two square...