英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Is there a circle symbol? - TeX - LaTeX Stack Exchange
    87 Probably this is a good chance to recall the Detexify website, where you can simply draw the symbol you want, and obtain the needed code I'm a bad illustrator, but for me, after drawing the circle, \circ was the first hit
  • Proving $ \angle MAN = 45^\circ$ in an isosceles right triangle
    Regional Mathematical Olympiad 2003 (India) Let $ABC$ be a triangle in which $AB =AC$ and $\\angle CAB = 90^{\\circ}$ Suppose that $M$ and $N$ are points on the
  • Prove $2 (\sin (36^ {\circ})+\sin (72^ {\circ})) = \sqrt2\csc (27 . . .
    6 I stumbled upon this trigonometirc identity $$2 (\sin (36^ {\circ})+\sin (72^ {\circ})) = \sqrt2\csc (27^ {\circ}) + \cot (27^ {\circ})-2$$ and find its exact value is $\sqrt {5+2\sqrt5}$ The backstory is an elementary exersice on regular polygon, note the shape in blue are both regular below
  • How do I use a circle as a math accent (larger than \mathring)?
    In the end I'm using an even larger circle than in Caramdir's great answer: accents sets the \circ in \scriptscriptstyle; I'm using \scriptstyle To not affect the line spacing so much, I have the circle lowered and let it stick out a bit of the bounding box of the resulting accented character
  • Is this $20^\circ$ approximation construction using triangle, square . . .
    $20^\circ$ and $10^\circ$ are ever-popular construction targets, as the (alas, non-constructible) trisections of "special" angles $60^\circ$ and $30^\circ$ Almost every geometer of the past couple of millennia probably has an attempt or two scrawled in a personal journal somewhere, so finding a specific one can be tricky
  • symbols - Circle above a letter - TeX - LaTeX Stack Exchange
    I could write a circle above the letter but it seems far a little bit Is there a way to get it down a little bit, because I really use it a lot and it takes a lot of space Here is a sample of the
  • new command of a math expression $^ {\circ}$C - LaTeX Stack Exchange
    I frequently use $^{\circ}$C for writing the degree celsius unit Now I would like to make this into a command like \deg, \degree, \celsius, or any suitable command that is not already taken of course
  • What is the degree symbol? - TeX - LaTeX Stack Exchange
    In order to have the following output involving the degree symbol I can try \documentclass{report} \begin{document} The angle is 30$^\circ$ \end{document} However, this is an awkward manner to obtain the degree symbol - one reverts to math mode and casts an existing symbol into superscript Is there a straightforward way of obtaining the degree symbol?
  • Trigonometric ratios for angles greater than $90^\\circ$?
    The trigonometric ratios of an angle greater than $90^\\circ$ are equal to the supplementary angle's ratios I'm just clarifying this, but the ratios don't actually exist for angles greater than $90^\\
  • What operation is $\circ$? - Mathematics Stack Exchange
    $\circ$ is exactly the operation given by the table, no more, no less It is not addition mod $4$, or multiplication mod $4$, or anything familiar like that The only question is whether it is a group operation So find out whether it has an identity (this should be pretty quick), and determine what that identity element is Then find out whether each element has an inverse—that is, a





中文字典-英文字典  2005-2009