2013年9月27日 · with \frac: the actual context implies the decision above. For example, if you have a complicated mathematical expression in the middle of some array environment (which, by default, employs text-style math), you can use \dfrac to force the use of displaystyle math mode for the fraction \dfrac and \tfrac are from the amsmath package

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Or this version, which uses displaystyle throughout and preserves the vertical alignment of fraction bar and minus sign by putting the brackets around the whole lower expression, and then backspacing the "1-" outside the brackets.

Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

When TeX is in display-style math mode and the amsmath package is loaded, \frac and \dfrac are equivalent, and the material in the numerator and denominator portions of \frac will be typeset in "text-style math" mode by default. This entails, among other things, that summation and integral symbols will be typeset in text style, as will any ...

2019年2月24日 · To remedy the small (\textstyle) equations, as I said in a comment, add \displaystyle before the small fraction, or (with amsmath), use \dfrac.

\[ \frac{\fam0 a}{b} \] For my purposes, should such an issue arise, it is easily resolved by using \frac and so, while this example illustrates a shortcoming of \over and the need for something more robust, it does not illustrate to me any reason to eschew \over when it …

2011年12月30日 · LaTeX provides the much overused $\frac{1}{4}$ but this has several disadvantages, especially if it's used in ordinary math mode (as part of the running text). First, it changes the size of the figures in the numerators and denominators, and second it may screw up the interline spacing.

Your question is basically about mathjax usage in websites (such as Math.SE), but fortunately, \frac or \dfrac command (for 'better' fractions) work with mathjax – user31729 Commented Dec 3, 2014 at 15:40

2023年6月23日 · Then what does $\frac{3}{4}$ of the cake mean? Or is it just a shorthand way of writing (where the denominator is the number of equal parts into which something is divided and the numerator is the number of taken parts), for example, “two thirds of a rope” is $\frac{2}{3}$? Can someone explain the meaning behind this notation with examples?