Mariner

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15 years, 309 days

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These are questions asked by Mariner

The paper that Wayne Bell is using dates from 1962, so it’s not surprising that Professor Robert Israel found its format for elliptic integrals differs from those of Maple and Mathematika. Indeed, it differs from those of Professor LM Milne-Thompson (circa 1960) in A&S chapter 17. It belongs to an earlier era, though - according to an antique textbook of mine (circa 1930s) - the format would have been reversed, i.e. F(k,beta) and E(k,beta). It’s curious that Maple adopted a format, resembling but differing from that of A&S. Does anyone know the reason?
In the example below, the plot option axesfont affects both axes in Maple 10.06, but in Maple 11.01 it affects only the vertical axis. Is this a feature, or a bug? If it’s a feature, how can I change the font of the horizontal axis tickmarks?

restart;
dates := [0 = "21/8/00", 140 = "8/1/01", 536 = "8/2/02", 885 = "23/1/03", 1267 = "9/2/04", 1628 = "4/2/05", 2004 = "15/2/06", 2200 = "30/8/06", 2479 = "5/6/07", 2531 = "27/7/07"];
xy := [[0, 2.5], [140, 2.2], [536, 2.6], [885, 2.5], [1267, 3.3], [1628, 3.1], [2004, 5.0], [2200, 3.0], [2479, 5.9], [2531, 4.3]];
plots[pointplot](xy,symbol=circle,tickmarks=[dates,default],axesfont=[TIMES,ROMAN,8]);
How can dsolve be persuaded to yield the solution to a 2nd order ODE in trigonometric terms please? E.g. dsolve({x
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