LPOWER _ _ _ _ _ _ _ _ _ _ _ _ operator

The lpower operator returns the leading power of an expression with respect to a kernel. 1 is returned if the expression does not depend on the kernel.

syntax:

lpower(<expression>,<kernel>)

<expression> is ordinarily a polynomial. If ratarg is on, a rational expression may also be used, otherwise an error results. <kernel> must be a kernel.

examples:

lpower((x+2*y)**6,y); 

   6
  Y  


lpower((x + cos(x))**8 + df(x**2,x),cos(x));
			 


        8
  COS(X)  


lpower(x**3 + 3*x,y); 

  1