The unicursal hexagram is a hexagram or six-pointed star that can be traced or drawn unicursally, in one continuous line rather than by two overlaid triangles. The hexagram can also be depicted inside a circle with the points touching it. It is often depicted in an interlaced form with the lines of the hexagram passing over and under one another to form a knot. It is the same shape as depicted in Blaise Pascal's 1639 Hexagrammum Mysticum Theorem.