6.27.10 Leading coefficient of a polynomial: lcoeff
The lcoeff command finds the leading coefficient of a
polynomial; that is, the coefficient of the monomial of highest degree.
-
lcoeff takes one mandatory argument and one optional
argument:
-
P, a polynomial given by a symbolic expression or by its
list of coefficients.
- Optionally, x, a variable name (by default x).
- lcoeff(P ⟨ ,x⟩) returns the leading coefficient of P.
Examples.
-
Input:
lcoeff([2,1,-1,0])
Output:
- Input:
lcoeff(3*x^2+5*x,x)
Output:
- Input:
lcoeff(3*x^2+5*x*y^2,y)
Output: