Feature request: add and option for scientific notation in LaTeX

[HMegh]

Hi,

Would it be possible to add an option so that the numbers in the latex output will be displayed using the scientific notation "\times 10^n"? For example, .000025 will be 2.5\times 10^{-5} instead of 2.5e-5.

Right now, I can do this with a regex find-replace, but it would be awesome if the package supports it.

[ronisbr]

Hi @HMegh !

In fact you can do this by using the formatter ft_latex_sn:

julia> a = rand(4, 4) * 1e5
4×4 Matrix{Float64}:
 78664.9     762.498  89321.9  58704.7
 51475.3   86237.6    11990.0  33106.3
 41140.2   10658.2    55646.8  35019.9
  2035.81  80699.8    33982.4  77060.7

julia> pretty_table(a; tf = tf_latex_default, formatters = ft_latex_sn(4))
\begin{tabular}{rrrr}
  \hline
  \textbf{Col. 1} & \textbf{Col. 2} & \textbf{Col. 3} & \textbf{Col. 4} \\\hline
  $7.866 \cdot 10^{4}$ & 762.5 & $8.932 \cdot 10^{4}$ & $5.87 \cdot 10^{4}$ \\
  $5.148 \cdot 10^{4}$ & $8.624 \cdot 10^{4}$ & $1.199 \cdot 10^{4}$ & $3.311 \cdot 10^{4}$ \\
  $4.114 \cdot 10^{4}$ & $1.066 \cdot 10^{4}$ & $5.565 \cdot 10^{4}$ & $3.502 \cdot 10^{4}$ \\
  2036 & $8.07 \cdot 10^{4}$ & $3.398 \cdot 10^{4}$ & $7.706 \cdot 10^{4}$ \\\hline
\end{tabular}

The first argument is the number of decimal cases in the mantissa. The second argument can be a vector of integers telling to which columns the formatter must be applied.

[HMegh]

Awesome! That's what I was looking for, thank you.