User talk:Goolies flock

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Some editing tips that could be useful in math articles
Hello. Your edits to compound Poisson process prompt these tips:


 * It is conventional that "displayed" TeX is indented by an invisible preceeding colon (and also, when the paragraph is already indented, as for example by this bullet point, then two preceeding colons are used), thus


 * $$\int_0^\infty 1\,dx$$


 * In TeX, you need to use \ln instead of plain ln, in order to get several effects: proper spacing, preventing the letters "ln" from getting italicized as if they were variables, and others -- see below. Thus


 * $$x\ln x\,$$


 * looks different from


 * $$xlnx\,$$


 * Similarly with \sin, \cos, \det, \max, \lim, etc. In the case of \max and \lim, the backslash also makes any supscripts appear straight under the operator, rather than below and to the right, thus:


 * $$\lim_{x\to 0}\,$$


 * (Also, I suspect that when TeX is used in the normal way, rather than the way it's used on Wikipedia, the backslash may prevent line-breaks between, for example, "sin" and "x", in an expression like "sin x", but I'm not sure of this last point.)

Michael Hardy 23:55, 6 January 2006 (UTC)

... and non-homogenous Poisson process also brings up some details:


 * In non-TeX mathematical notation, variables should be in italics to be consistent with TeX style, and you should add spacing on both sides of "+" or "&minus;" of "=", thus


 * a + b


 * looks different from


 * a+b


 * A section heading that says "Mathematical definition" should use a lower-case initial "d", not capital (see Manual of Style; similarly in other section headings.


 * The title word or title phrase should be in boldface at its first appearance in the article.


 * I added the initial words "In probability theory, ...". You cannot assume the reader knows that.  The reader may be a non-mathematician, or even a mathematician unfamiliar with probability theory.

Michael Hardy 00:07, 7 January 2006 (UTC)

I'm playing
$$ K = \frac{PV_{0} Death Benefits}{PV_{0} Gross Premiums} = \frac{\sum_{k=1}^\infty DB_{k+1} \cdot v^{k+1}{}_{k|}q_{x}}{\sum_{k=1}^\infty GP_{k} \cdot v^{k}{}_{k}p_{x}}$$

$$ {}_{h}V = \sum_{j=1}^\infty DB_{h+j+1} \cdot v^{j+1}{}_{j|}q_{x+h} - \sum_{j=1}^\infty P_{h+j} \cdot v^{j}{}_{j}p_{x+h} $$

$$ P_{t} = K \cdot GP_{t}$$

Image:Reg.jpeg listed for deletion
An image or media file that you uploaded or altered, Image:Reg.jpeg, has been listed at. Please look there to see why this is (you may have to search for the title of the image to find its entry), if you are interested in it not being deleted. Thank you. BigDT 03:12, 13 April 2007 (UTC)