Available mathematical functions in Mplot++:

   1)Sin:    sine           
   2)Cos:    cosine                 
   3)Tan:    tangent 
   4)Asin:   arc sine               
   5)Acos:   arc cosine             
   6)Atan:   arc tangent           
   7)Exp=e^: exponential function          
   8)Ln:     natural logarithm  (or neperian logarithm)    
   9)Log:    decimal logarithm      
  10)Sinh:   hyperbolic sine
  11)Cosh:   hyperbolic cosine
  12)Th:     hyperbolic tangent
  13)Ssinh:  inverse hyperbolic sine
  14)Scosh:  inverse hyperbolic cosine  
  15)Stanh:  inverse hyperbolic tangent  
  16)Qd:     square
  17)Cb:     cube
  18)Rq:     square root
  19)Rc:     cube root
  20)Inv:    inverse of a no-zero number
  21)Ip:     integer part 
	     (ip(x) = largest integral value not greater than x) 
  22)Int:    integer part = number without its decimal digits
  23)Frac:   frac(x)=x-ip(x)    for all floating-point number x
  24)Dms:    this function gives the measure of an angle in the form
	     degrees, minutes and seconds
  25)Deg:    this function gives the measure of an angle in the form
	     degrees and decimals
  26)Fatt:   factorial function 
	     (it accepts an integer number between 0 and 170)
  27)Abs:    absolute value
  28)N  :    the opposite of a number x (-x)
  
Warnings:  
  a) The arc sine function returns values between -90(-pi/2) and 90
     (pi/2), just as the arc tangent function.
  b) The arc cosine function returns values between 0(0) and 180(pi).
