On Saturday 13 August 2011, Jukka K. Korpela <[email protected]> wrote: > Traditional math notations require advanced typesetting and cannot be > implemented in plain text; and when one needs to linearize such notations to > plain text, radicals are among the minor issues—as √(a + b) with no vinculum > would be quite acceptable, and so would sqrt(a + b). I remember reading in the 1960s a publication from the Monotype Corporation in England that publicised the 4-line mathematics system for the typesetting of mathematics. I seem to remember that that system included a character that one might describe today as like a U+005C REVERSE SOLIDUS yet with a steeper angle with respect to the horizontal. The idea was that in order to typeset the square root of an expression one did not use a line above the expression of which the square root was to be taken, one used a symbol like U+221A SQUARE ROOT, followed by the expression, followed by the steep-angled reverse solidus. I have today found the following on the web about the 4-line mathematics system. http://en.wikipedia.org/wiki/Times_Roman#Times_4-line_Mathematics_Series_569 William Overington 13 August 2011
