Regula falsi

Okay kiddo, did you know there's a way to find out the exact spot where two lines cross each other? It's called "regula falsi" which is a fancy way of saying "false position".

When we try to find out where two lines cross each other, we need to start somewhere. In math theory, we call the point where two lines cross the "intersection point".

Now, imagine you have two lines on a piece of paper. One is straight and the other one is squiggly. They cross each other somewhere. But we don't know where that is yet.

What we do know is that there's one spot where the two lines intersect. So, we pick a spot between the two lines and call it our first guess. Let's say we guess it's close to the squiggly line.

Then, we check to see which line is closer to the spot we guessed. If the squiggly line is closer, we move our guess closer to it. If the straight line is closer, we move closer to that line. We keep doing this, moving closer and closer to where we think the lines intersect.

Each time we move, we call it a "false position" because we haven't found the exact intersection point yet. But as we keep moving closer and closer, we'll eventually find the intersection point.

So there you have it, regula falsi is a way to find the point where two lines cross by making guesses and moving closer to the true intersection point. Pretty cool, right?