ARULER HAS DEPLETING TO DRAW AND FIX THE CONCEPT OF MULTIFARIOUS FUNCTIONS , AND THEY ARE UNCLOSED SHAPES SUCH AS QUADRATIC FUNCTION, CUBISM FUNCTION , FRACTIONAL FUNCTION , ALL TYPES OF MEASUREMENT FUNCTION AND LOGRETMES FUNCTION . AND AS SOON AS PULLING THE PENCIL INSIDE THE SHAPE THAT WANTED TO BE DRAWN HEREBY THE STUDENT HAS GOT THE SHAPE OF THE FUNCTION THAT HE WANTS TO DRAW WITH WORKING THE DISPLACEMENTS THAT RESPECTIVE TO THE FUNCTIONS AS THE RULER IS PELLUCIDING AND THAT AS THE STUDENT CAN SEE THE ORTHOGONAL ABSCISSA AND THEN THE INTRANSITIVE DISPLACEMENTS OF THE SHAPE THAT WANTED TO DRAW CAN BE WORKED OUT AND THE CROSSING POINT OF FUNCTION WITH ORTHOGONAL ABSCISSA IS ASSIGNED