有用简笔画，将双马头用一条线连通绘画的方法完成---**Textual Information:**
* Visible text on the screen includes a cursor and formatting marks like "I=".
* Faint text in the bottom right corner appears to be "HVA".
**Chart/Diagram Description:**
* **Type:** Stylized logo or emblem.
* **Main Elements:**
* The logo consists of two dark blue shapes on a light grey background.
* Each shape represents a stylized horse head and neck in profile, facing towards the center.
* The two shapes are vertically mirrored along a central axis.
* The heads are positioned at the top, and the necks curve downwards, meeting in the center at the bottom to form a shape resembling a heart or two curved lines.
* There are smaller curved shapes within the main outlines, adding detail to the forms.
* The style is minimalist and abstract.
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One-line drawing is the art of creating a complete image without lifting your pen from the paper. This fascinating technique combines artistic creativity with mathematical precision. Let's start with a simple example - drawing a house in one continuous line. But our main challenge today is much more complex: the double horse head logo. This elegant design features two mirrored horse heads facing each other, connected at the bottom. The question is: can this intricate pattern be drawn in a single, unbroken line? To answer this, we'll need to dive into the mathematical world of graph theory.
To solve our drawing challenge mathematically, we need to understand graph theory. Any drawing can be represented as a graph, where vertices are intersection points and edges are line segments. For example, a simple triangle has three vertices and three edges. The key concept is an Eulerian path - a route that visits every edge exactly once without repetition. If such a path exists, then the shape can be drawn in one continuous line. Let's see how this applies to our triangle example, where we can trace from vertex A to B to C and back to A, covering all edges once.