New answers tagged geometry
2
How about this?
\documentclass[tikz,border=3.14mm]{standalone}
\usetikzlibrary{arrows.meta,bending,calc}
\begin{document}
\begin{tikzpicture}[lbl/.style={circle,draw,inner sep=1pt},>={Latex[bend]}]
\draw[dashed,thick] (0,2.5) coordinate(T) (-1,0) coordinate(BL) -- (0,0.5) coordinate(B)
edge (T) -- (1,0) coordinate(BR);
\draw[<-] ($(T)!0.5!(BL)$) ...
2
You can use \enlargethispage{-1cm} or something similar in order to make it so that the tcolorbox environment using /tcb/height fill sees a shorter last page:
\documentclass{exam}
\usepackage[fontsize = 14pt]{scrextend}
\usepackage{lipsum}
\usepackage[xparse,breakable]{tcolorbox}
\usepackage[includefoot,foot=0mm,bottom=20mm]{geometry}
\pagestyle{...
1
Basically define a macro that holds the invitation, then call the macro twice on the page. Not an MWE but to give you the idea:
\documentclass{article}
% other preamble stuff
\newcommand{\invite}{The code for the invitation.}
\begin{document}
\invite
\vfill % some space between the invitations
\invite
\end{document}
2
If you are doing that lots you might like to make a macro:
vardef label_along(expr your_label, target_path, time_on_path, offset) =
draw thelabel(your_label, origin) rotated angle direction time_on_path of target_path
shifted (up scaled offset rotated angle direction time_on_path of target_path)
shifted point time_on_path of target_path ...
1
Not sure why, but this seems to work.
\documentclass[12pt]{article}
\usepackage[paperwidth=297mm, paperheight=420mm,margin=0mm,noheadfoot]{geometry}
\usepackage[width=35truecm,height=45truecm,cam,noinfo,center]{crop}
\usepackage{flowfram}
\setallstaticframes{valign=t}
\newstaticframe[1]{297mm}{110mm}
{0mm}{310mm}[titlearea]
\...
3
Instead of
label("\huge$p_2f_1$", (vzero + vtwo) * 0.5);
you can use this:
labeloffset := 7bp; % necessary here to avoid overlapping the arrows
draw thelabel.top("\huge$p_2f_1$", .5[vzero,vtwo]) rotatedaround (.5[vzero,vtwo], angle(vzero-vtwo));
which gives:
5
You can use tikz-3dplot. In this code, you can change the value of x of the line \pgfmathsetmacro\myx{\h/2}. In your case, myx = h/2.
\documentclass[border=1mm,tikz,12pt]{standalone}
\usepackage{tikz-3dplot}
\begin{document}
\pgfmathsetmacro\th{75}
\pgfmathsetmacro\az{60}
\tdplotsetmaincoords{\th}{\az}
\pgfmathsetmacro\a{1}
\...
4
If you want a correct cone in 3d you can read this Mathematics_in_Science_Teaching
The code is from Aslanbek Naziev (Ryazan State University).
I adapted the code to v3.02
\documentclass{standalone}
\usepackage{tkz-euclide}
\begin{document}
\thispagestyle{empty}
\begin{tikzpicture}
\tkzSetUpPoint[size=3]
\begin{scope}[xscale=2]
\tkzDefPoint(0,...
3
\documentclass[tikz]{standalone}
\begin{document}
\begin{tikzpicture}
\draw(0,0) circle (2cm and 0.5cm);
\draw(2,0) -- (0,6) -- (-2,0) arc (180:360:2cm and 0.5cm);
\draw(-2,0) arc (180:360:2cm and 0.5cm) -- (0,6) -- cycle;
\draw[dashed](-2,0) arc (180:0:2cm and 0.5cm);
\draw[dashed](2,0) -- node[below] {$2r$} (0,0);
\draw(-1,3)arc (180:360:1cm and 0....
2
This is my attempt. I made liberal use of rotatedabout both because it worked nicely, and because rotations led to your question. I couldn't think of a better way to get the arrows other than:
take the line connecting node centers, and chop of the portions inside (undrawn) circles around the nodes in order to get some separation between the nodes and the ...
0
For a single line and no equation number, use \displaystyle:
\documentclass{standalone}
\begin{document}
\( \displaystyle E=mc^2 \)
\end{document}
For multiple lines with no equation numbers, you can abuse a tabular.
\documentclass{standalone}
\usepackage{array}
\begin{document}
\begin{tabular}{@{}>{$\displaystyle}r<{\null$}@{}>{$\displaystyle\...
2
\leftmargin is the wrong measure (helpfully...). The left margin is measured as 1 inch, plus the \oddsidemargin (which for an actual 2cm margin will be negative), so this is what you want:
\documentclass{article}
\usepackage[margin=2cm, a4paper, nomarginpar, hoffset=0pt]{geometry}
\usepackage{showframe}
\usepackage{color}
\definecolor{blackgray}{rgb}{0.25,0....
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