What is the name of the vertical bar dividing a window?
Church architecture of England be found all over the British Isles. By the late thirteenth century, more daringly ornate styles of tracery were tried – the so-called Decorated, dating from 1290–1350. Initially geometric, using circles as well as the two point arch, it derived from the French Rayonnant style. However, it slowly became more daring and flowing; the name curvilinear has been ascribed to it. Windows became larger, increasing the number of mullions (the vertical bars dividing the main part of the window) between the lights; above them, within the arch of the window, the tracery was formed using shapes styled 'daggers' and 'mouchettes',
Vertical bar Vertical bar The vertical bar ( | ) is a computer character and glyph with various uses in mathematics, computing, and typography. It has many names, often related to particular meanings: Sheffer stroke (in logic), verti-bar, vbar, stick, vertical line, vertical slash, bar, pike, or pipe, and several variants on these names. It is occasionally considered an allograph of broken bar (see below). The vertical bar is used as a mathematical symbol in numerous ways: The double vertical bar, , is also employed in mathematics. The vertical bar is used in bra–ket notation in quantum physics. Examples: A pipe is