In this clip, Charlie uses fractal dimension to detect forged comics. He argues that forgeries take longer to draw, causing ink to seep out in a way that increases "wrinkliness", which can be measured by fractal dimension.
The CyberSquad finds that no one is on floor -3, and Motherboard cannot track their location. Jackie guesses that they are on floor -5, the Grand Ballroom, so Digit tries to determine which direction to go. Initially, he thinks that they should go up, but that turns out to be incorrect. Jackie, Inez, and Matt explain to Digit why -5 is less than -3.
David Stringer explains ancient Pythagoras' findings about right triangles. He illustrates the Pythagorean Theorem and explains how special right triangles with the ratio 3:4:5 can be scaled up to any size.