Hi all,

I have been looking at the printing of integrals in the LaTeX printer and am interested in getting your opinions on the subject.

Firstly, we currently always print the 'd' (as in dx, dy, etc) in italics. However, some books print it as a Roman (upright) character. Mathematica prints it in 'blackboard' style type, although I do not believe that this is supported for lower-case letters in LaTeX.

Question is do we want to make this configurable, or is it going too far? Has anyone ever wanted the ability to change the style of the d in integrals?

Secondly, double and triple integrals without limits. Consider: Integral(x*y, x, y); this currently is two distinct \int\int signs. However, LaTeX prints \iint for this case, which looks slightly neater. Same goes for triple integrals. I have a patch for this which uses string-replacement (\int\int\int => \iiint, \int\int => \iint). Yay or nay?

Finally, often to save space when printing a fraction the d<x> is put on the top of the fraction. So Integral(1/x, x) becomes dx/x. While this only really works if the expression is a single fraction which is part of a single integral would anyone be interested in me adding this?

I would need to work out if the integral is printed as a fraction and is so somehow add a dx on the top (sounds like string replacement). Although there may be an easier way to do it.

Be interested to know what you all think.

Regards, Freddie.

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