A 'sloka' ( verse) indicating the importance of Mathematics" Yadha sikha mayooranam,
Naaganaam manayo thatha
Thadvad vedanga shasthranaam
This Sanskrit verse if translated gives the meaning as: as the beautiful feather on the head of a peacock, as the diamond on the head of snake Mathematics shines on the top of all Saasthras.
This sloka gives the importance of Mathematics among various sciences. Very often it is referred as "Queen of all sciences".
At the same time mathematics have applications in all scientific studies. In that sense it is serving all sciences. In fact not only in sciences but also in all other subjects. Because of this mathematics is also considered as "servent of all sciences".