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In chemistry, the vertical line is used in cell notation of electrochemical cells. Example, Zn | Zn 2+ || Cu 2+ | Cu Single vertical lines show components of the cell which do not mix, usually being in different phases. The double vertical line ( || ) is used to represent salt bridge; which is used to allow free moving ions to move.
25A0 25B0 25C0 Symbol Name Symbol Name Symbol Name Last Hex# HTML Hex HTML Hex HTML Hex Dec Picture Dec Picture Dec Picture BLACK SQUARE: BLACK PARALLELOGRAM: : BLACK LEFT-POINTING TRIANGLE
On many Unix systems and early dial-up bulletin board systems the only common standard for box-drawing characters was the VT100 alternate character set (see also: DEC Special Graphics). The escape sequence Esc ( 0 switched the codes for lower-case ASCII letters to draw this set, and the sequence Esc ( B switched back:
This symmetry breaks down as one moves to the three-dimensional case. A vertical line is any line parallel to the vertical direction. A horizontal line is any line normal to a vertical line. Horizontal lines do not cross each other. Vertical lines do not cross each other. Not all of these elementary geometric facts are true in the 3-D context.
In its simplest form, an arrow is a triangle, chevron, or concave kite, usually affixed to a line segment or rectangle, [1] and in more complex forms a representation of an actual arrow (e.g. U+27B5). The direction indicated by an arrow is the one along the length of the line or rectangle toward the single pointed end.
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box drawings light up and right ┘ u+2518: 217: box drawings light up and left ├ u+251c: 195: box drawings light vertical and right ┤ u+2524: 180: box drawings light vertical and left ┬ u+252c: 194: box drawings light down and horizontal ┴ u+2534: 193: box drawings light up and horizontal ┼ u+253c: 197: box drawings light vertical ...
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