{calculations} is about calculations in (La)TeX documents. A popular package is calc although may other also exist (fp, pgf, and LaTeX3 packages).

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2
votes
1answer
56 views

Tikz 3d trimetric view coordinate calculation bug

I'm trying to draw a line in the x-y-plane and circles in the y-z-plane at constant x position. Problem is, that the circle is far out of position (x-coordinate of center point of the circle is ...
3
votes
1answer
48 views

Parse numerical value from glossaries variable

Can I parse the text returned from \gls*{...} and get latex to recognize it as a numerical variable so that I can use it in a calculation? This calculation could be done using calculator, fp, calc or ...
1
vote
1answer
28 views

How to print a past value of a counter [duplicate]

I have this counter which I have defined using \newcounter{myCounter}. Printing the value of myCounter can be easily done via \arabic{myCounter}. How can I print the value of (myCounter - 2)?
5
votes
1answer
101 views

Does anyone have an explanation of the algorithm for calculating weeknumber by Taco Hoekwater?

Taco Hoekwater wrote an algorithm in 2006 calculating the weeknumber. The algorithm mostly computes the weeknumber correctly, but apparantly misses out for the first 4 days of 2015. Without an ...
4
votes
1answer
62 views

Is it possible to use the width of one TikZ node to calculate the width of another?

Question Is it possible to store the variable width of a node and use that width to calculate the text width of another node in TikZ? Example I have a list of similar nodes side-by-side (inline, ...
8
votes
3answers
507 views

What is the best way to do math inside LaTeX macros?

I'm interested in writing a little personal package (or sharing it if it's actually useful) to speed up typesetting Trigonometry. I'd like commands like ...
4
votes
1answer
73 views

How can I calculate the distance added between a title and a titlerule?

Question How can I calculate the distance after a title such that I can place a node where the title rule would go? Example I would like a bar to drop from the top righthand corner of the page down ...
4
votes
3answers
300 views

How to round number to two digits after the decimal place and have a comma separator?

I have the following function: % Formats inputed number with 2 digits after the decimal place \newcommand*{\formatNumber}[1]{\FPround{\cost}{#1}{2}\cost} % \cost goes through some calculations ...
0
votes
0answers
49 views

Perpendicular line to a line on a 3D plane

\documentclass{standalone} \usepackage{pgfplots} \usetikzlibrary{calc} \pgfplotsset{compat=1.10} \begin{document} \begin{tikzpicture} \begin{axis}[ view={125}{35}, axis lines=center, ...
2
votes
1answer
110 views

How to solve the Arithmetic overflow problem?

I was making an article and everything was going alright, when suddenly I got an error: The error: Arithmetic overflow. \calc@Acount l.78 ...qwe dqweqwrwf qewrfrQ aRF EFCas drfFR}{62} My article ...
4
votes
1answer
219 views

How to divide two lengths and get a result as an integer?

I have a problem dividing two lenghts and getting a result as an integer. I was trying to use this package: \usepackage[nomessages]{fp} It didn't really work for me. I tried it multiple ways, but it ...
21
votes
2answers
488 views

Sum of finite series using LaTeX 3

Is it possible to calculate the value of a finite series, say, using LaTeX 3?
2
votes
1answer
105 views

How can I put a minipage that fits to the actual line width inside of a TikZ Node?

Question I would like to put a minipage environment inside of a tikz node. I know this is done already with the align=left command, but if you set a minimum width of the node to \linewidth, then the ...
6
votes
3answers
542 views

Tikz: drawing in perspective

I am working on drawing a beam in perspective. I have my point I want to use as the perspective point (10, 3). What would be the way to draw along this line? For instance, consider ...
3
votes
1answer
77 views

calculating polar coordinates with tikz

Random polar coordinates has an example of the general sort of syntax I'm aiming to follow. For some reason the result is not working as intended. In the MWE, I've commented out the line where I ...
3
votes
1answer
113 views

Why can't I use a variable from a \foreach loop inside a calc library macro?

Question Why can't I use the \foreach variable as a percentage in my calculations with the calc library of TikZ? Sample Code In the following, I could replace the variable \mypercentage with an ...
3
votes
0answers
30 views

Formatting numbers the Indian way [duplicate]

This is a follow-up question to Handling numbers and calculations. The numbers printed by \num[group-separator={,},group-minimum-digits=4]{\the\numexpr(5000)\relax} will produce comma separated ...
2
votes
2answers
45 views

Handling numbers and calculations [duplicate]

I have to deal with a lot of numbers in my latex documents. So far, I have been using a rudimentary \newcommand{\VarOne}{1000} to define \VarOne and then use it as it is using \VarOne{} in the ...
5
votes
1answer
138 views

Adding a number to every element

I have a table, whose entries are a list of one or more numbers. Now, I need that all numbers in the table are to be incremented by 1. For example, say, I have the table: \documentclass{article} ...
3
votes
1answer
47 views

global variables and/or array of variables

I'm looking for a way to obtain (in tex/latex - still difficult for me to determine the difference - I guess it should state latex) run-time defineable global variables to be used with the fp package. ...
3
votes
2answers
134 views

Compute the difference between two time points on different dates

This is a follow-up question to How to compute the difference between two time points (e.g., 11:30 am and 01:20 pm => 110 min)?. Consider the code from David's excellent answer here: ...
1
vote
1answer
43 views

How to reuse a term in calc macro of latexcalc?

Although latexcalc seems to be no longer in active development, I'd like to know whether it is possible to reuse a term which I want to both display and calculate, but only maintain once, e.g ...
1
vote
1answer
26 views

interactive tooltipp improvement

according to this article, especially to AlexGs tooltipp code [1], it seems to me, that if the text inside the tooltipp will exceed more than one line, it disappears outside the page. It would be ...
0
votes
0answers
43 views

Command-scopes in a tabular-environment

I'm trying to use a command which aggregates some values. When using it with normal text, it is properly working but if I call the command in a table it seems that there is a problem with scopes or ...
8
votes
2answers
261 views

How to do simple calculation in latex tables

Here I wish to do three things: 1) I want my table to be like this one below whereas mine is 2) I want numbers to appear in the same format as their heading p (in bold) 3) I want latex to ...
3
votes
1answer
43 views

spacing from calculator package

I'm trying to include images and overlay them with their width and height info in mm. I save the image to a box and then use the calculator package to calculate the mm width and height of that box. ...
6
votes
2answers
144 views

Trying to convert Hrs:Mins to Mins

I am having a bit of trouble trying to convert a time format from Hours:Minutes for instance 12:05 into 12*60+5 = 725, ie I would like to use 725 as a number of minutes. I am already using the number ...
4
votes
2answers
125 views

Calculator and calculus package: result [.] dot instead [,] comma

My codes, \documentclass{article} \usepackage{calculator} \usepackage{calculus} \newcommand\teo{3} \newcommand\job{,5} \begin{document} \MULTIPLY{\teo}{340}\W \MULTIPLY{\job}{5605}\WW ...
6
votes
2answers
148 views

the calc package doesn't compute the correct value

I get an unexpected result using the calc package. I simply try to multiply the real value '10.01' by the entire value '10000' and to store the result in a counter. But the returned value is not the ...
5
votes
5answers
989 views

How can I multiply two numbers?

I use pgffor package and I have \foreach \n in {1,...,10}{**something I want**} How can I print n*(n+1) for each n? When I write just \n*(\n+1) instead of **something I want**, ...
13
votes
2answers
796 views

How to compute the difference between two time points (e.g., 11:30 am and 01:20 pm => 110 min)?

Is there a simple way to compute the difference between two times (same day), so 11:30 am and 01:20 pm should lead to 110 min (or 1h 50min), for example? I saw the datenumber package but it only seems ...
10
votes
2answers
815 views

Page number in Fibonacci style

How to display the page number in Fibonacci. Example: Normal page number 1, 2, 3, 4, 5, 6, 7, 8,... Fibonnacci page number style: 1, 1, 2, 3, 5, 8, 13, ...
15
votes
6answers
2k views

Sum of (example: 0+1+2+3 = 6 , 0+1+2+3+4+5+6+7 = 28 and so on)

Can anyone help please? I need to know how to make the sum of value S(n) = 0+1+2+3+4...+(n-1)+n (example: 0+1+2+3 = 6 , 0+1+2+3+4+5+6+7 = 28 and so on) on Latex
0
votes
2answers
65 views

LateX code for 1+2+3+4+5 = 15 [duplicate]

Can anyone help please? I need to know how to make the sum of value S(n) = 0+1+2+3+4...+(n-1)+n (example: 0+1+2+3 = 6 , 0+1+2+3+4+5+6+7 = 28 and so on) on Latex I am new in this language. \batchmode ...
4
votes
1answer
50 views

how do I multiply a command argument with a constant?

I'm writing a novel and I defined a set of commands for starting a new chapter: %A \newcommand{\AKapitel}[1]{\lettrine[lines=3, lraise=-0.2,findent=-22pt, nindent=14pt, ...
3
votes
2answers
140 views

How to calculate and use the ratio of two lengths?

I want to calculate the ratio of two lengths in Latex, so that I can then stretch an en dash by that ratio. For example, in the code below, I'd like to replace the "0.7" value of FakeStretch with the ...
3
votes
0answers
26 views

Use data from other multiple data files with calculations [duplicate]

This answer shows nicely how to use data from another file while plotting data using \addplot table. However, when trying to access the create on use column using \thisrow{}, an error occurs. For ...
17
votes
6answers
867 views

Rounding a number to its hundred

Does anybody know how I could have LaTeX round a number like 2,386 so that I finally get only written 2,300? I tried with siunitx and its option [round-mode=places,round-precision=-2] but it didn't ...
2
votes
2answers
197 views

Relative node positioning with calc library

Hi I'm trying to place same nodes relative to each other. I'm trying to place a node in the middle between two other nodes, but also half a cm to the right. \usepackage{tikz} \usetikzlibrary{calc} ...
1
vote
0answers
74 views

Is there a counter or variable that can be used to store numbers with decimals?

I'm working on an invoice document which has a "Grand Total" at the end of the document after some rows of invoice items. As such, I need to keep a running count of the total for each row. Using the ...
3
votes
2answers
174 views

TikZ decorated paths and fixedpointarithmetic library

Background: I am trying to apply multiple decorations to a path in a TikZ picture. In this particular case, my attempts fail as the maximum dimension PGF can calculate with is exceeded. This is not ...
7
votes
4answers
350 views

Debugging Advice: Dimension too large (Need stack trace)

Background: I am stuck on a "Dimension too large" problem which is occurring during index generation. This is a large index of links to files (along with other related information), and am sure the ...
5
votes
1answer
236 views

Numeric variable in LaTeX

I have been given the task of creating a LaTeX template for producing marking reports for student research proposals. We need an easy way to assign marks (numeric values) to particular qualities of ...
4
votes
1answer
103 views

Calculation of an absolute position

My question is about calculating with the package textpos. By saving the vertical position of a block of text with zsavepos and calculating the middle of it, I want to position a block of text at the ...
2
votes
1answer
108 views

Time calculations

Based on a given starting time, I'd like to automatically calculate a time table. Based on https://groups.google.com/forum/#!topic/de.comp.text.tex/BQrRUYmDrHw I put the following MWE together: ...
5
votes
2answers
278 views

Do multiplication rules differ in TikZ compared to standard TeX?

I'd like to scale a line according to \figscale. Here it is said that the below syntax should work in general, but in this graphic it does not. As the picture shows, the numbers are just concatenated ...
2
votes
1answer
75 views

Building evaluated arrays

I'm trying to build an array dynamically in latex then use it in tikz. I'm a little confused about how to create an array and add evaluated mathematical expressions to it (I'm trying arrayjob). ...
2
votes
1answer
78 views

\widthof text in a def'd subroutine inside a tikzpicture? [duplicate]

I have already seen \widthof within tikzpicture, but this is slightly different. I have a rather complex Tikz image, which I'd like to eventually include in a Latex document; as such, I'd like this ...
2
votes
2answers
80 views

Automate a running counter through a document

The following minimal example demonstrates my situation: \documentclass{article} \usepackage{calculator} \newcommand{\pts}{0} \begin{document} \ADD{\pts}{3}{\pts}\pts \ADD{\pts}{3}{\pts}\pts ...
2
votes
1answer
74 views

Using a fp variable in a longtabu header

So, I am using the tabu package (which I need to use over tabular others for several reasons) to make a long table spanning several pages. This table contains currency amounts in a column, and I'd ...