[Tex/LaTex] Ceiling in LaTeX

Question

I want to make an equation that use ceiling, and that's what I'm doing:

\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{mathtools}
\DeclarePairedDelimiter{\ceil}{\lceil}{\rceil}
\begin{equation}
\ceil[\big]{\frac{log{(1-P_{0})}}{log{(1-p)}}}
\end{equation}

The result is not as good as I want it:

How do I make the ceiling cover the whole fractions?

Answer 1

You should read some guides (starter guides) for LaTeX and math (especially about the sizes). With the knowledge about them you could easily adapt to this (\bigg):

\documentclass{article}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{mathtools}
\DeclarePairedDelimiter{\ceil}{\lceil}{\rceil}
\begin{document}
\begin{equation}
\ceil[\bigg]{\frac{\log{(1-P_{0})}}{\log{(1-p)}}}
\end{equation}
\end{document}