%\usepackage{my_base}

\newcommand {\limi}[1]{\lim_{#1\to\infty}}
\newcommand {\limz}[1]{\lim_{#1\to0}}

\newcommand {\intii}[2]{\int_{-\infty}^{\infty} #1\:d#2}
\newcommand {\intiz}[2]{\int_{-\infty}^{0} #1\:d#2}
\newcommand {\intzi}[2]{\int_{0}^{\infty} #1\:d#2}
\newcommand {\intzp}[2]{\int_{0}^{\pi} #1\:d#2}
\newcommand {\intztp}[2]{\int_{0}^{2\pi} #1\:d#2}
\newcommand {\intzo}[2]{\int_{0}^{1} #1\:d#2}
