calculations
I am trying to make my own command to calculate geometric sequence in LaTeX example: 10*4^(n+1)
I've tried couple of things similar to this but non of them seemed to work:
\newcommand{\GeometricSequence} [1] {\the\numexpr 10*4^(#1+1) \relax \\}
So if type command (shown below) it should "print" 3360.
\GeometricSequence {3}
LaTeX is a typesetting system, and trying to use it for anything other than that will probably lead you to frustration at some point or another. Unless your table is really very simple, I think going for a spreadsheet and then exporting that to LaTeX is definitely the best way to go.
Now, having said that, for a simple table you can use, as Thorsten suggested, a package like spreadtab and write something like:
\begin{spreadtab}{{tabular}{llll|l}}
& @ Foo & @ Bar & @ Baz & \\
@ Small & 5 & 3 & 11 & sum(b2:d2) \\
@ Medium & 9 & 2 & 23 & sum(b3:d3) \\
@ Large & 13 & 15 & 44 & sum(b4:d4) \\ \hline
& sum(b2:b4) & sum(c2:c4) & sum(d2:d4) &
\end{spreadtab}
Run texdoc spreadtab on a command line to get its documentation and read the full details.
You can also use \intcalcMod from the intcalc package:
\documentclass{article}
\usepackage{amsmath}
\usepackage{ifthen}
\usepackage{intcalc}
\newcounter{mycount}
\newcommand\Nmodiii[1]{%
\setcounter{mycount}{0}\whiledo{\value{mycount}<#1}
{$\themycount\pmod 3=\intcalcMod{\value{mycount}}{3}$\\\stepcounter{mycount}}
}
\begin{document}
\noindent A little example: $8\pmod 3=\intcalcMod{8}{3}$
\noindent And a little loop:\\
\Nmodiii{20}
\end{document}
The code that appears in the link posted in a comment, there are some spurious blank spaces producing an undesired indentation of the first line; here's a corrected version:
\documentclass{article}
\usepackage{ifthen}
\usepackage{forloop}
\usepackage{fmtcount}
\usepackage{intcalc}
\usepackage{multicol}
\begin{document}
\begin{multicols}{2}
\newcounter{i}
\noindent\forloop{i}{1}{\value{i} < 101}{%
\ifthenelse{\equal{\intcalcMod{\value{i}}{15}}{0}}{
FizzBuzz
}{%
\ifthenelse{\equal{\intcalcMod{\value{i}}{3}}{0}}{
Fizz
}{%
\ifthenelse{\equal{\intcalcMod{\value{i}}{5}}{0}}{
Buzz
}{%
\thei
}
}
}\\
}
\end{multicols}
\end{document}
Best Answer
Up to 24 because of floating point precision limitation.