discriminant of a polynomial - Maple Help

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discrim - discriminant of a polynomial

Calling Sequence

discrim(p, x)

Parameters

p

-

polynomial in x

x

-

independent variable

Description

• 

If d=degreep,x and a=lcoeffp,x then the discriminant is

112dd1resultantp,xp,xa

Examples

p:=ax2+bx+c

p:=ax2+bx+c

(1)

discrimp,x

4ac+b2

(2)

l:=5x2+x1

l:=5x2+x1

(3)

discriml,x

21

(4)

solvel,x

110+11021,11011021

(5)

k:=x22x+3

k:=12x2x+3

(6)

discrimk,x

5

(7)

solvek,x

1+I5,1I5

(8)

See Also

degree, lcoeff, resultant, solve


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