All Questions
20 questions
0
votes
0
answers
52
views
Calculations involving pgfkeys?
I've begun using pgfkeys to set a bunch of custom variables. I'm also using pgfmath to do some calculations. I understand how to set and call the variables, but the manual is mind boggling to me, ...
- 137
3
votes
1
answer
69
views
Using pgfmath results in pgfkeys
I'm trying to create a simple variable system using pgfkeys, but I want to be able to create new "var" using other var, see this MWE where I have tried to use \pgfmathprintnumber. I thought ...
- 33
6
votes
2
answers
215
views
TikZ: How to create a list with calculated entries for a style
I have a TikZ-matrix. And I want to highlight the rows
1, 3, 6, 10, 15, 21, 28,... =n*(n+1)/2
For small examples, I could do it this way:
highlight/.style={ row #1/.style={....} },
highlight/.list=...
- 9,923
2
votes
2
answers
108
views
pgfplotstable: Highlight rows of a numeric sequence
I would like to highlight the rows n*(n+3)/2 = 0, 2, 5, 9, 14, 20, 27, 35,...
How could I automate that best way using the term n*(n+3)/2?
\documentclass{standalone}
\usepackage{pgfplotstable}
\...
- 9,923
0
votes
1
answer
190
views
Get value of global scale in in TikZ-picture [duplicate]
I calculate some lengths of a path (without the use of the let operator!).
To achieve that I use the \pgfgetlastxy{}{}; command (which works fine so far) but if I scale the picture, the calculations ...
- 1,234
2
votes
2
answers
355
views
How to print number with predefined exponent base (pgf)?
How can I print a number with some predefined base of power of 10 (exponent base) using \pgfmathprintnumber
\documentclass[border=1cm]{standalone}
\usepackage{pgf}
\usepgflibrary{fpu}
\begin{...
- 5,640
1
vote
1
answer
71
views
How to get mantissa and exponent of a number from within pgf/fpu?
I need to get mantissa and exponent of a number from within pgf/fpu.
I found @egreg's solution from here, but this solution does not work inside fpu.
\documentclass[]{article}
\usepackage{pgf, tikz}
\...
- 5,640
2
votes
2
answers
598
views
variant of scientific notation on pgf
I use scientific notation on pgf to display numbers.
My present code as follows:
\documentclass{article}
\usepackage{pgf}
\begin{document}
\pgfkeys{
/pgf/number format/.cd,
sci,
sci generic={...
2
votes
1
answer
293
views
change "output format" of pgfkeys sci or fixed
I have defined an environment that is used for calculation as shown below
\newcounter{Precision}
\newenvironment{calc}[1][1]{\setcounter{Precision}{#1}
$\pgfkeys{/pgf/fpu,/pgf/fpu/output format=sci}
}...
- 470
7
votes
4
answers
1k
views
Is there a limit for the seed value in pgfmathsetseed
I am using pgf to create some random exams. To set the seed, I am using pgfmathsetseed. This system uses very different values for the seed, whose range could go to the thousands. The pgf manual says ...
- 315
0
votes
1
answer
158
views
How to use \pgfmathfloattomacro to store computation values in a variable and reuse the variable
I use \pgfmath for computation of floating point numbers a lot. But I want to store the result of each computation and store it in a variable and then use back to perform another floating point ...
- 470
10
votes
1
answer
636
views
How can the effects of \pgfkeys{/pgf/fpu=true} be reversed?
Consider the following MNWE:
\documentclass[border=10pt,multi,tikz]{standalone}
\usetikzlibrary{fpu}
\pgfkeys{/pgf/fpu=true}
\pgfkeys{/pgf/fpu=false}
\begin{document}
\pgfmathsetmacro\myresult{Mod(-...
- 219k
2
votes
1
answer
51
views
Computing minimum width based on style arg
I have successfully defined a "block" that I can instantiate in various sizes, with annotations at its sides. However, I would like to set the minimum width to sqrt(#2), while keeping the label as #2....
- 149
5
votes
1
answer
840
views
rounding to one decimal woes...
I have a problem with rounding --- I have seen How do I get \pgfmathparse to create value rounded to one decimal place? but still I can't obtain the result I need.
See this MWE:
\usepackage[utf8]{...
- 44.1k
3
votes
1
answer
691
views
pgfplots: math expressions of variables in axis style
I would like to use a calculated value of pgf variable exp(\pgfplots@data@xmin)
This is a concrete example what I need
\documentclass{standalone}
\usepackage{pgfplots}
\pgfplotsset{compat=newest}
\...
- 3,607
6
votes
1
answer
867
views
Remove the first and last values of xtick and ytick
I use the following code to create a tufte-like range plot as suggested here: Tufte like axis with pgfplots
\documentclass{standalone}
\usepackage{pgfplots}
\pgfplotsset{compat=newest}
\makeatletter
...
- 3,607
4
votes
1
answer
6k
views
\pgfmathprintnumber and pre-defined styles
In text mode I would like to use \pgfmathprintnumber to print numbers in an uniform style. The style used shall be defined in the preamble of the document. See the following MWE:
\documentclass{...
- 341
14
votes
1
answer
2k
views
pgfmathprintnumber in bold and/or sans serif
I've set some pgfkeys such as precision=2 and use comma. Now I wonder how do I get the results of
\pgfmathprintnumber{123.567}
to be bold and/or sans serif?
I thought this is easy, but everything ...
- 424
3
votes
2
answers
2k
views
Undefined control sequence \pgfmath@
Why does the following code give me this error message?
Error
ERROR: Undefined control sequence.
--- TeX said ---
\pgfmath@dimen@ ...men@@ #1=0.0pt\relax \pgfmath@
l.28 \draw (\...
- 14.7k
11
votes
1
answer
477
views
Is it possible to store \pgfmathresult in a pgfkey?
I would like to perform a calculation using \pgfmathparse and then store \pgfmathresult as the value of a pgfkey.
\documentclass{article}
\usepackage{tikz}
\begin{document}
\...
- 305