Questions tagged [fp]

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4
votes
1answer
88 views

On the incompatibility of the tikz and fp packages: division (/) operator in \FPeval and node in tikz

Let us assume that we want to divide two numbers u=-60 and v=3 using the fp package without calling tikz picture. It works fine as below: \documentclass{article} \usepackage{fp} \begin{document} \edef\...
2
votes
1answer
51 views

On the fp package: inverse sine function

On page 3/7 of the fp package we see the definition of the inverse sine function as below: \FParcsin#1#2 % #1 := arcsin(#2) From high school we may remember: Arcsin(0.5)=pi/6= 0.524 around. I got 0 ...
1
vote
1answer
33 views

On the fp package: repeat last test

On page 3/7 fp package documentation we read: %repeat last test \ifFPtest ...\else...\fi % repeat last test I really could not understand this. That is why I wrote a code as below to see what \...
0
votes
1answer
66 views

Using the fp package inside an invoice template [closed]

I am using this template : https://www.latextemplates.com/template/invoice And I want to kind of do something similar to this : \newcommand*{\total}[1]{\FPdiv{\t}{\arabic{#1}}{1000}\formatNumber{\t}} ...
1
vote
1answer
48 views

Nested macros using FPeval

I am trying to create an easy to use template, with a part that would look like this: The original code I used to do this is the following: \begin{tabularx}{\linewidth}{|X|X|X|X|X|} \hline \rowcolor{...
5
votes
1answer
72 views

Can \fp_eval handle uppercase e (“E”) exponent symbol format

While handling data from a text file, I stumbled upon this problem. My numeric data is formatted using a %n.dE C format specifier. which outputs numbers with a uppercase e (E) as scientific notation ...
0
votes
1answer
72 views

fp and macro question

I try to feed macros doing FP calculations into other macros doing the same, and face problems with macro expansion. The usual "protect" trick didn't work for me. Any hints? An example is below. \...
1
vote
2answers
80 views

pgfplotstable: correct way to generate new columns using custom commands in a table that can be plotted with tikz

Sorry if the title is too big, but I didn't know how to express it as something specific, I try to generate new columns in a table using custom commands, for instance: \documentclass{scrbook} \...
0
votes
1answer
78 views

newcommand, pgfplotsinvokeforeach, expl3: How to handle with several arguments of the kind '#…'

I have #1 for my newcommand. I have ##1 for my pgfplotsinvokeforeach-loop. Now I would need something like ###1 for my comparing-method "\fpcompareTF{##1<0}{333}{##1}". What is the right way ...
1
vote
1answer
101 views

Using \def variables computed by \FPeval within tikz

Hello there I am an absoulute beginner. I took some tikz template for drawing nerual nets and tried to modify it so I can change the number of layers automatically, but it yields strange errors. I ...
4
votes
1answer
95 views

Getting the equation number as an integer

I want to use the number of an equation as an integer value. Consider the following MWE: \documentclass{article} \usepackage[nomessages]{fp}% http://ctan.org/pkg/fp \begin{document} \begin{...
5
votes
2answers
317 views

Nested FPifeq : Extra \fi error

I want to have a command Unit with 1 parameter that return : nothing if the parameter is 1 - if the parameter is -1 the parameter in any other case The goal is to show x and -x instead of 1*x* and -...
1
vote
1answer
393 views

How to calculate factorial with xfp package

I'm trying to calculate the factorial with the xfp package. In the documentation (http://ctan.cs.uu.nl/macros/latex/contrib/l3packages/xfp.pdf), I have found the function name to be fact. My code ...
3
votes
1answer
265 views

How to use result of \FPeval computation “inline”?

Instead of writing something as, which works \documentclass{article} \usepackage{array} \usepackage{fp} \begin{document} \FPeval{\result}{4*0.3} %store the result in `\result` first then: \...
0
votes
2answers
128 views

combining ifthen with FPeval - problem

if i use \FPeval{\one}{\csname test1\endcsname} everything is fine. If i use \FPeval{\one}{\csname test1\endcsname+\csname test2\endcsname} in \ifthenelse, then i get en error. \...
2
votes
1answer
122 views

Use \ifthenelse{\equal{ on a number called from reference

I want to store an answer key for an exam and then automatically move the multiple choice answer choices around for each question match its predetermined answer. (I need to conform my multiple choice ...
2
votes
3answers
134 views

How to store values in an array?

How to store a calculated value in array? zz(1) = ( xx(1) + yy(1) )/2 \fpeval\zz(\counter){(\xx(\counter)+\yy(\counter))/2} NOT working \documentclass{beamer} \usepackage{siunitx,amsmath} \...
4
votes
2answers
186 views

Array variable with fp package: How to use \FPeval in array?

I want use array along with fp package. \FPadd\xx{\somevalues(1)}{\somevalues(3)} works well \FPeval\xx{\somevalues(1)+\somevalues(1)} NOT working How to use \FPeval in array? \documentclass{...
11
votes
3answers
1k views

How to write Quadratic equation with negative coefficient

How to write Quadratic equation with negative coefficient in fp For a=1, b=-5, c= 6, $\ca x^2+\cb x + \cc=0$ gives 1x^2 + -5x + 6 But i want to have x^2 -5x + 6 \documentclass{beamer} \usepackage{...
2
votes
1answer
112 views

Adding/subtracting to the /thecsvrow number in csvsimple

Assume a simple example centered on the csvsimple package. \documentclass{standalone} \usepackage{csvsimple} \usepackage{fp} \usepackage[table]{xcolor} \begin{filecontents*}{input.csv} Foo,...
6
votes
2answers
544 views

Using FP package to compute sum breaks: FP error: UPN stack is empty!

I am trying to sum up entries in a table and thought using the fp package was the way to go. The MWE below, \AddToTotal{18,000.00} \AddToTotal{-17,000.00} \AddToTotal{-8,000.00} yields: as ...
5
votes
1answer
128 views

Spy magnification with tangent to an ellipse doesn't work

I tried to adapt the zooming code from https://tex.stackexchange.com/a/457705/21557 to an ellipse, but if I choose the zooming factor high enough there is an obvious mismatch of the tangent position: ...
6
votes
1answer
192 views

Why does the result of FPeval disappear after a `&`

I am trying to use the fp package, and the results are deeply confusing to me: \documentclass[a4paper]{article} \usepackage{fp} \begin{document} \begin{tabular}{r|l} \FPeval\testing{2 + 2} a & \...
1
vote
1answer
60 views

How to add an unit to a calculated value properly?

I have some trouble to understand how I ought to handle some values I calculated with fp to use them as length. It is obvious that I have to add an unit to the number to use it, but trying to do so, I ...
2
votes
3answers
889 views

FPeval in a macro [closed]

I am writing a document where I need to use a lot the following construct \FPeval{\born}{1833} \FPeval{\died}{1894} \FPeval{\age}{round(\died - \born,0)} Born in \born, died in \died (\age years old)...
3
votes
1answer
70 views

FP calculation problem with multicolumn

I want to do a calculation inside tabular environment, My tabular look like this \documentclass{book} \usepackage{array} \usepackage{fp} \begin{document} \begin{tabular}{|*{4}{c|}} \hline a & ...
0
votes
1answer
292 views

Strange behaviour of \FPeval

I have a piece of code, which sometimes compiled correctly, other times it gives an error. Is it possible that the package fp is unstable? Or might another package conflict with fp? How could I fix ...
1
vote
1answer
227 views

Can FP read scientific notation?

I'm reading numbers from a file that are in scientific notation, and I'd like to do a simple calculation with them using FP. However, it's giving me the error FP error: Illegal character e found in ...
1
vote
1answer
45 views

Why is there extra space in left justified longtable cell when creating custom function

I'm using the longtable and fp packages to create an invoice in the scrlttr2 document. I have used the \entry custom command to allow for creating running totals, compute the tax, and obtain a grand ...
1
vote
3answers
862 views

How to extract integer part and fractional part of a decimal number?

Code: \documentclass{article} \usepackage[a4paper]{geometry} \usepackage[english]{babel} \usepackage{fp} \def\x{59.3612} \begin{document} \noindent x = \x\\ %what to write here? int(x) = 59\\ frac(x) ...
1
vote
0answers
75 views

Can spreadtab distinguish between displayed value and actual value?

Number formatting behaves in a way that is not ideal in spreadtab. Basically, I can set rounding using \STautoround{2}, but if the numbers in the table are used in later computations, the rounding ...
5
votes
1answer
495 views

LATEX3: More than 9 arguments

I am working on a table template with Latex3 and want to calculate the sum of a column. My Problem is that i can't pass more than 9 parameters, which is necessary since I don't know how big the table ...
4
votes
2answers
561 views

Calculating a real inside an environment

I am trying to calculate real numbers within an environment. Unfortunately, I'll have to display the result of the calculations outside the environment. This is my minimal example. \documentclass{...
3
votes
1answer
358 views

Problem with negative “multido” and “fp”

Is there a way to use "negative" numbers with multido and fp? In the code below, it works with \Nx=4+0.5 but not with \Nx=4+-0.5. Additional question: is there a way to do this without using package ...
1
vote
1answer
571 views

fp - How to keep running sum in variable?

I have this code in my LaTeX: \FPset{totalHours}{0} \newcommand{\entry}[5]{ \FPeval{totalHours}{(totalHours)+#5} #1 & #2 & #3 & #4 & #5 \\ } Where \entry is meant to be an ...
5
votes
2answers
649 views

Unable to pass result of one command as argument to another

In my document I have the need to do a little bit of maths, which is related to sizing images. Specifically I need a linear interpolation function, the inverse function of linear interpolation, and a ...
9
votes
2answers
2k views

Direct evaluation of fp expression

This code \documentclass{article} \usepackage[nomessages]{fp} \begin{document} \FPeval{result}{clip(cos(pi))} $\cos(\pi)=$\result \end{document} would produce the following output: Is it possible ...
2
votes
1answer
602 views

\FPeval not working in new command

\documentclass[10pt]{article} \usepackage{calc} \usepackage{fp} \newcommand{\test}[1]{ \makeatletter \setlength{\tempdimen}{\widthof{#1}} \FPeval\‌​resultaP(70-\strip@pt\tempdimen)/2} \makeatother} \...
4
votes
1answer
586 views

\widthof{} command in \FPeval

Could someone please tell me how I can use the \widthof{} command from the calc package within \FPeval from the fp package? \documentclass[10pt]{article} \usepackage{calc} \usepackage{fp} \begin{...
1
vote
1answer
173 views

Library with xkeyval, make my life easier?

Question is related to the topic that I opened last year regarding the Library with xkeyval, fp and newcommand where the library now grew quite big and adding new stuff in it has become tedious and ...
2
votes
1answer
457 views

Creating a heatmap using calculations and tabular environment

I know there exists pgf, and many people uses this to create heatmaps. I however am not allowed to use this package. I therefore want to create a command that enables me to color the different cells. ...
1
vote
0answers
134 views

Expansion to fpeval

This is a followup to Egregs answer in the question Deleting defined variables or assign within group, I am trying to expand the code, but got into trouble while attempting some calculations with ...
3
votes
2answers
315 views

overloading functions of the fp package

I have a document with several commands that store numeric variables inside an extra macro. This extra macro will highlight that text so I can track them in the printed document. Like so: \...
5
votes
2answers
268 views

Error in pgfplot when big offset is subtracted

I have some data with a huge offset that I want to plot. Im using PGF plots, where it's possible to subtract the offset from a whole row in my data. This works when the offset isn't too big, and/or ...
0
votes
1answer
246 views

Library with xkeyval, fp and newcommand

Been searching the net here and did not find any solution to this. I am having some problems with a defined library structure (xkeyval) with FPeval calculation and then passing this information/...
0
votes
2answers
583 views

Numerical calculations inside table environment

I am doing a coursework in mechanics and would like to write both the theory and calculations in LaTeX. However, as design is iterative process, I would like to escape the tedious cycle of: Select ...
3
votes
2answers
2k views

Tikz: Math with coordinates

I need to extract the coordinates of a node into a variable. I've tried \pgfextractx \documentclass[11pt]{article} \usepackage{fp} \usepackage{tikz} \usetikzlibrary{calc} \begin{...
2
votes
2answers
211 views

Show variable name, measurement unit and value in a single command invocation

I am using the fp package to write a coursework in mechanics and calculate the numerical values on the fly. Here is some example code: \documentclass{article} \usepackage[nomessages]{fp} % http://...
2
votes
1answer
111 views

Calculating time difference within datatools foreach

I'm trying to build a table with some calculations from an external file. data.csv: From,To,Task 10:00,11:00,Task1 11:00,13:13,Task2 I'm using datatool to read the csv and it's foreach to output the ...
3
votes
1answer
260 views

How to pass a command as \uncover argument

I can't pass a command to the argument of an uncover command in the beamer class. Why? How do I fix this? Here's my code: \documentclass{beamer} \usepackage{fp} \newcommand{\fcEvalToInt}[1]{\FPeval{\...