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** monter:** Polynomials
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** Table des matières**
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##

Leading coefficient of a polynomial : `lcoeff`

`lcoeff` takes as argument a polynomial given by a
symbolic expression or by the list of it's coefficients.

`lcoeff` returns the leading coefficient of this polynomial,
that is the coefficient of the monomial of highest degree.

Input :
`lcoeff([2,1,-1,0])`

Output :
`2`

Input :
`lcoeff(3*x``^`

2+5*x,x)

Output :
`3`

Input :
`lcoeff(3*x``^`

2+5*x*y`^`

2,y)

Output :
`5*x`

giac documentation written by Renée De Graeve and Bernard Parisse