My Dad is Not Just a Picture. Remembering him for my children. I wanted to do something today to mark the milestone.

Issue 4 will hopefully be crowdfunded. This is where you come in. Please, please pledge whatever you can to help me make my dream a reality. River Hands by Greta Bellamacina. This river was not intended to grow and grow. Hand me the river, many dots, many hands.

Isometric embedding of a metric space in a Hilbert space. Scatter plot of distances between points in metric space and corresponding Hilbert Space. Plot generated using real world data. Step functions on a plane. In this post, I give a possible definition for step functions in. And a related problem and its possible solution. Be the arc length parametrization of a plane, smooth, closed, convex curve, of length. The problem is to determine.