Suppose I arrange the numbers 40, 30, 20, 10 in the corner positions of a 3*3 array. To be precise, the number 40 (resp. 30, 20, 10) is located at the top-left (resp., bottom-left, top-right, bottom-right) corner. I have 3 questions:
Q1. How to type a symbol at the left-middle position to indicate that 40 is larger than or equal to 30? I think the symbol looks like of shape "V" together with a vertical bar aside (at the left or right side of the shape "V").
Q2. How to type a symbol in the middle position of the array to mean that 40 is larger than or equal to 10? I imagine that it appears like a skew "V" with it mouth pointing to 40, and with a bar aside again.
Q3. How to type a single symbol at the middle position, meaning that "40 is larger than or equal to 10, and 30 is larger than or equal to 20"? I hope it looks like a brute-force combination of the symbol from Q2 and its analog.
I need these folk math symbols in a beamer presentation. Wish someone kindly give me a collection of feasible TeX codes to do them, so that I can learn how to make such symbols in TeX. Or, are there ready-made codes in any TeX packages? Thanks in advance!
Here is an MWE:
Thanks Henri. Here is an MWE:
\documentclass{amsart}
\begin{document}
\[
\begin{array}{ccc}
40 & > & 20\\
Q1 & Q2/Q3 & *\\
30 & > & 10
\end{array}
\]
\end{document}
\documentclass{...}
and ending with\end{document}
. – Henri Menke May 22 '14 at 7:13\rotatebox
will do the trick. – Seamus May 22 '14 at 7:34\rotatebox
is perfectly adequate for your MWE however if you need arbitrary orientations for your symbol you may consider using TikZ (it does not load much extra stuff in beamer). Also, an Hasse diagram could be handy for Q3 – Bordaigorl May 22 '14 at 8:01