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The tip of a green felt-tip pen A box of colored felt-tip pens Marker pen. A marker pen, fine liner, marking pen, felt-tip pen, felt pen, flow marker, sign pen (in South Korea), vivid (in New Zealand), flomaster (in East and South Slavic countries), texta (in Australia), sketch pen (in South Asia), koki (in South Africa) or simply marker is a pen which has its own ink source and a tip made of ...
Break point: Point which, if won by the receiver, would result in a break of service; arises when the score is 30–40 or 40–ad. A double break point or two break points arises at 15–40; a triple break point or three break points arises at 0–40. [27] Break: To win a game as the receiving player or team, thereby breaking serve. At high ...
A very hard and flat pitch, good for batting on. Synonyms such as street, highway, etc. may sometimes be used in the same context. Rogers The second XI of a club or county. From the Warwickshire and New Zealand player Roger Twose. [citation needed] A groundsman applies a roller to the pitch, while another paints the popping crease Roller
Although the most common nibs end in a round point of various sizes (extra fine, fine, medium, broad), various other nib shapes are available. Examples of this are oblique, reverse oblique, stub, italic and 360-degree nibs. [26]
In geometry, a two-dimensional point group or rosette group is a group of geometric symmetries that keep at least one point fixed in a plane. Every such group is a subgroup of the orthogonal group O(2), including O(2) itself. Its elements are rotations and reflections, and every such group containing only rotations is a subgroup of the special ...
In geometry, a point group is a mathematical group of symmetry operations (isometries in a Euclidean space) that have a fixed point in common. The coordinate origin of the Euclidean space is conventionally taken to be a fixed point, and every point group in dimension d is then a subgroup of the orthogonal group O(d).
A traditional silverpoint stylus is made with a small fine rod of silver, such as jewelry wire, which is inserted into a wooden rod. Another design is a silver-tipped metal stylus with points on both ends. An example of this type is shown in Rogier van der Weyden's St. Luke Drawing the Virgin, ca. 1435–40 (Boston Museum of Fine Arts). For a ...
In geometry, a point is an abstract idealization of an exact position, without size, in physical space, [1] or its generalization to other kinds of mathematical spaces.As zero-dimensional objects, points are usually taken to be the fundamental indivisible elements comprising the space, of which one-dimensional curves, two-dimensional surfaces, and higher-dimensional objects consist; conversely ...