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Oct
17
comment \frac{1-z^{n+1}}{1-z} doesn't look very good and how to leave space equal to the size of a given text
@Harald: Could you expand? please.
Oct
17
comment \frac{1-z^{n+1}}{1-z} doesn't look very good and how to leave space equal to the size of a given text
There is still one more reason for wanting that alignment and it is the mnemonic device we use to remember the formula for the sum of a geometric progression. It is easy to remember because we only need to write the same thing 1 minus the ratio and an exponent above that is the number of terms. Visually this picture is broken if the two things are not aligned. The centering doesn't aid the understanding of the formula. Very true that, in general, one would like fractions to be centered but typesetting is content dependent.
Oct
17
comment \frac{1-z^{n+1}}{1-z} doesn't look very good and how to leave space equal to the size of a given text
I don't think that that is true. It is difficult to parse centering a large expression. Clearly one can write the numerator draw a line below it and center 1-z in the denominator. Think about what would happen if instead of z you had a mammoth expression as the ration of the geometric progression.
Oct
17
comment \frac{1-z^{n+1}}{1-z} doesn't look very good and how to leave space equal to the size of a given text
It is more general for hiding a text, but my main interest is solving the problem with the fraction. Are there cases in which the \hfill doesn't behave well for. I mean, is there some problem if I change z and n by something else?
Oct
17
comment \frac{1-z^{n+1}}{1-z} doesn't look very good and how to leave space equal to the size of a given text
No. It is a vestigial error from a previous attempt that I forgot to delete. Anyways, it is not a good solution even without it. See the one by Philipp
Oct
17
comment \frac{1-z^{n+1}}{1-z} doesn't look very good and how to leave space equal to the size of a given text
neat solution is this!
Oct
17
comment \frac{1-z^{n+1}}{1-z} doesn't look very good and how to leave space equal to the size of a given text
I completely doubt it. Do you write from left to right or you implement centering text in your head? It is completely unnatural. Try it. The difference becomes more apparent as the text is larger. Try a bulky exponent and ratio instead of n and z.
Oct
17
revised \frac{1-z^{n+1}}{1-z} doesn't look very good and how to leave space equal to the size of a given text
+ subquestion in the body of the question
Oct
17
asked \frac{1-z^{n+1}}{1-z} doesn't look very good and how to leave space equal to the size of a given text
Oct
12
awarded  Critic
Oct
11
answered Why is the spacing for this completely whacky?
Oct
6
awarded  Commentator
Oct
6
comment How to cite an article from Arxiv using bibtex
Nevermind. Key is a field that is ignored and not printed, so it can not be there. Then I think it should be in NOTE as you said.
Oct
6
revised How to cite an article from Arxiv using bibtex
added 304 characters in body
Oct
6
comment How to cite an article from Arxiv using bibtex
Actually there is a bibtex entry that is @unpublished which is the one I am using. I didn't noticed and I put @article in the example above. It has fields: author, title, note, month, year and key. So the question is more about whether to put the arxiv code of the article in note or in key.
Oct
6
comment How to cite an article from Arxiv using bibtex
This more like what I was asking. Now, it would be good to know if this is standard and even more if AMS has some guideline in this case.
Oct
6
revised How to cite an article from Arxiv using bibtex
adding info
Oct
6
comment How to output the final value of some counter, like number of figures or tables in the middle of the document?
This is a question I had also and I never managed to answer.
Oct
6
asked How to cite an article from Arxiv using bibtex
Sep
30
comment Tikz node labels more below than below
Ah! It was right in front of my face. In the pgfmanual it says "This option is given to a node and it causes another node to be added next to the node where the option is given."