STEPS :

1. The Program Draws Graph For Any Function In ' x '. Enter The Function In ' x ' And Specify Range And Points.
   
2. Valid Operators Are
   + , - , * , / and ^ ( POWER eg: x^2 means x square )
   
3. Valid Functions Are
   sin , cos , tan , asin ( Inverse Sine ) , acos , atan ,
   ln ( Natural logarithm ) , log ( Log To Base 10 ) ,
   exp ( Exponential ) , abs ( Absolute Value ) , sqrt ( Square Root ) ,
   sinh ( Hyperbolic Sine ) , cosh , tanh