Is there a circle symbol? - TeX - LaTeX Stack Exchange 88 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
lie groups - Action of $G G^\circ$ on the roots of $G^\circ . . . If we take $G$ a non connected algebraic group over $\mathbb C$, with $G^\circ$ its neutral component, which we assume to be reductive, we can define an action of $A:=G G^\circ$ on the weight lattice of $G^\circ$ in the following way
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
Prove $2 (\sin (36^ {\circ})+\sin (72^ {\circ})) = \sqrt2\csc (27 . . . 7 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
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
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?
Is $\pi$ equal to $180^\circ$? - Mathematics Stack Exchange This answer is not correct: it would be correct if the part "not $\pi$ but" were deleted In fact the number $2\pi$ is literally equal to $360^\circ$ This is the definition of $\circ$
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