Talk:Product integral

This article was created to fill a gap I found amongst mathematicians and non-mathematicians (especially ecologists and biologists) alike. There is a need to add something about MATRIX PRODUCT INTEGRALS (especially with regard to Survival Analysis - see Richard Gill's webpage in references)

Daryl Williams 01:45, 19 June 2007 (UTC)

Indeed, if matrix-valued functions are not treated, doesn't this sort of integral degenerate into something of a triviality? Michael Hardy (talk) 18:14, 27 October 2010 (UTC)

Typography in note to The Fundamental Theorem

On my Firefox browser from Fedora Core 5, the prime on f'(x) in the note to "The Fundamental Theorem" does not show up, although I see it is there when I display the page in the "edit this page" mode. Tashiro (talk) 11:43, 7 January 2008 (UTC)

Type III

I've deleted Type III because it was simply incorrect equation: right sides of Type I and Type III were equal while left sides were different. Also note that notation used in this 'example' usually used for finite/descrete product. --MathFacts (talk) 11:25, 4 April 2009 (UTC)

Links?

I find it rather annoying and silly that this page contains multiple links which lead to the page itself. If there does not exist another page that discusses the topic in greater detail, then the link should be red. If this page contained enough information for each of these topics, then there would be no need for these links at all. If there is not enough information available for this page, then it should be amalgamated with other pages like it, in a page called "alternative calculi", though I am not sure of the existence of such a page. To summarize, this page needs to be fixed. — Preceding unsigned comment added by 67.5.154.76 (talk) 23:30, 1 September 2011 (UTC)

Bigeometric integral???

I was not sure where to post this comment: either in the multiplicative calculus page or here.

But considering the bigeometric derivative is $exp(xf'(x)/f(x))$, one can recover $f(x)$ by solving for it. No one explicitly states:
$\exp \left(\int log(F(x))/xdx\right).$

Is this because the actual formula is more difficult, the bigeometric integral should be obvious, or no one has gotten around to it yet? — Preceding unsigned comment added by 67.1.255.84 (talk) 09:30, 7 August 2014 (UTC)