Forbes contributors publish independent expert analyses and insights. Tom Sanderson is a Barcelona-based writer who covers Spanish football.

The goal of the first lesson is to render the wire mesh. To do this, we should learn how to draw line segments. We can simply read what Bresenham’s line algorithm is, but let’s write code ourselves.

the more important it is to uphold the authority of the UN and give full play to its role. The historical lessons are still relevant to the volatile world situation today.