Questions tagged [xfp]
The xfp tag has no usage guidance.
22
questions
0
votes
1
answer
47
views
"FPeval" along with "clip" when multiplied with 10 gives wrong answer while it does not happen with other numbers
\newcounter{tenMarksQ}
\setcounter{tenMarksQ}{0}
\DTLforeach{Q}{\Marks=Marks}
{
\ifnum\Marks=10
\addtocounter{tenMarksQ}{1}
\fi
}
\FPeval{\10}{clip(10*\thetenMarksQ)}
\section{ELABORATE ON:...
3
votes
2
answers
117
views
How to expand \fpeval{} results numerically?
I' m trying to use xfp to create some automated homework solutions. For short documents it works like a charm, but for longer one the compiling time grows exponentially. For example:
\def\GDUbeta{30} %...
- 31
4
votes
3
answers
282
views
xfp - Huge integers - Why is \inteval less accurate then \fpeval?
I was trying to print the first few terms of hyperfactorials, which are defined by H(0)=1 and H(n)=H(n-1)*n^n.
When fpeval is used for calculation and inteval is used for printing:
\documentclass{...
- 41
2
votes
1
answer
109
views
\dimeval for pdflatex?
I'm using pdfTeX 3.141592653-2.6-1.40.22 (TeX Live 2022/dev/Debian).
In a recent question, I have been provided with two excellent answers that unfortunately both make use of \dimeval. This command is ...
- 2,855
3
votes
1
answer
574
views
How to calculate a mean in LaTeX?
I'd like to set up a LaTeX template for grading, which would contain several categories that are graded individually using A-F by the user of the template. Out of these, the final grade has to be ...
- 105
4
votes
1
answer
198
views
problem when using radians with tikz
My initial problem occurred with this code:
\def\a{pi/2}
\pgfmathparse{\a r}\pgfmathresult
output : 89.99937
When I modified the macro \a thus \def\a{pi}
I get the error: Package PGF Math Error: ...
- 93.6k
0
votes
2
answers
63
views
Latex complaining about large numbers
To pretty print large numbers with numeric suffix, this solution works fine, except the last test case (the poster already indicated that, so it is not unexpected). Surprisingly, 6260563123 is ...
- 1,423
4
votes
2
answers
156
views
Adding parameters, inside a newcommand for partial derivatives
Using \usepackage{xfp}, I have created the following command:
\newcommand{\ppdv}[5]{\dfrac{\partial^{\fpeval{#3 + #5}} #1}{\partial {#2}^{#3} \partial {#4}^{#5}}}
So that, for example, if I type: \...
- 161
3
votes
2
answers
101
views
expl3 empty variable when called by another macro
Here is the boiled-down extract of what I'm trying to do. Apologies beforehand if some of the computations do not make sense, I've modified them for the sake of simplicity.
Basically, I've a function ...
- 2,097
2
votes
1
answer
274
views
How to set specific seed for random number generator in expl3 for use with xfp
I am using the xfp package to generate some random numbers, and am trying to figure out how to specify a specific random seed for the pseudo random number generator (so it gives the same results ...
- 125
6
votes
2
answers
288
views
On the strange calculations calling xfp, Tikz, sqrt, and ^2
As we now the square root of (-3)^2+(-4)^2 is the square root of 25 equal to 5.
However we got a strange error calling xfp package and Tikz saying:
\LaTeX3 error: Invalid operation sqrt(-25)
Below is ...
- 1,523
3
votes
2
answers
488
views
Classes/objects (OOP) in LaTeX
I want to create classes/objects using normal LaTeX commands to represent member variables and member functions. I came up with the following approach:
\documentclass{article}
\usepackage{expl3}
\...
- 133
4
votes
1
answer
107
views
Expandable set of divisors with xfp?
I wrote some code to print the set of divisors but it is not expandable.
\input expl3-generic.tex
\def\divisors#1{%
\def\L{1}%
\def\M{#1}%
\def\x{2}%
\loop
\ifnum \fpeval{floor(#1/...
- 1,272
4
votes
1
answer
178
views
Is there an interface to define functions in xfp?
Some functions are defined in xfp. Example: You can write something like \fpeval{max(1, 2, 3, 4)} and get 4 as the result.
I would like to define functions like crbt(x) = x^(1/3) or the greatest ...
- 1,272
3
votes
1
answer
354
views
xfp: zerofill at fpeval
I need some calculations with fpeval, where I want numbers like '21' outwritten as '21.0' with one zero after the point.
Is this possible at xfp.sty?
\documentclass[margin=5pt, varwidth]{standalone}
\...
- 7,529
5
votes
2
answers
347
views
Evaluating expressions using xfp
I want to generate two integer random numbers for the radius (r) and heigth (h) of a cilinder, in a certain question of my exam.
I am using the package xfp to generate the random numbers.
However, I ...
- 1,398
4
votes
3
answers
163
views
Removing cumulative sum + defining local variables + if
The below code is wrong but it illustrates what I am trying to achieve.
How would you write the g command?
\usepackage{xfp}
\newcommand{\f}[1]{
\inteval{(#1 - \a) / (\b - \a)}
}
\newcommand{\g}[1]{...
- 307
0
votes
2
answers
126
views
Is it possible to evaluate an integral using the xfp package?
I am curious if it is possible to evaluate an integral using the xfp package using tex language?
\fpeval{\int_{-1}^{1}\frac{1}{\sqrt{1 - x^2}}dx}}
Just throwing out the idea. I know I can easily do ...
0
votes
0
answers
77
views
How to create a line-spacing command like `\doublespacing` but for an arbitrary factor?
The setspace package provides a couple of multi-line spacing commands, like \doublespacing. But as far as I can see, it does not provide a simple spacing command by an arbitrary factor. It provides \...
- 1,777
2
votes
1
answer
217
views
On the xfp package: ternary operator x ? y : z
On page 1/2 xfp package we see ternary operator x ? y : z as a valid boolean expression. it deserves the author puts at least the definition of this.
In C I was told we have:
variable = Expression1 ? ...
- 1,523
7
votes
1
answer
171
views
The difference between {\x >\y} and {\x >? \y} in xfp package?
On page 1/2 of xfp package we see x >? y as a valid comparison operator. Is it different from x>y?
I think they are equivalent based on my following code, but not sure:
\documentclass{article}
...
- 1,523
1
vote
1
answer
309
views
On the xfp package: Comparison
On page 1/2 of the xfp package we read:
The floating point expressions may comprise:Comparison operators: x < y, x <= y, x >? y, x ! = y etc.
However they did not show an example. Below I ...
- 1,523