 
 
 
 
fMax and fMin take one or two arguments : an expression 
of a variable and the name of this variable (by default x).
fMax returns the abscissa 
of a maximum of the expression.
fMin returns the abscissa 
of a minimum of the expression.
Input :
Or :
Or :
Output :
Input :
Or :
Or :
Output :
Input :
^2,x)Output :
 
 
