正弦(级数定义)(Sine (Series Definition))

彩色定义

\newcommand{\sinefunction}{\color{c1}}
\newcommand{\thetacolor}{\color{c2}}
\newcommand{\impulse}{\color{c3}}
\newcommand{\firstforce}{\color{c4}}
\newcommand{\secondforce}{\color{c5}}
\newcommand{\more}{\color{c6}}



\sinefunction Sine is \impulse an initial impulse, \firstforce with a restoring force,
\
\secondforce with a restoring force on the restoring force, \more and so on.