Discriminant (Angielski)
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An expression derived from an equation, which gives us some information about the solutions of the equation.
For instance, the discriminant for a quadratic equation: ax2 + bx + c = 0 is:
d = b2 - 4ac.
If d is positive, the equation has two solutions; if d = 0 there is one solution and if d is negative there are no real solutions.
For instance, the discriminant for a quadratic equation: ax2 + bx + c = 0 is:
d = b2 - 4ac.
If d is positive, the equation has two solutions; if d = 0 there is one solution and if d is negative there are no real solutions.
Relacje
- Pojęcia ogólniejsze:
- (en) Expression
- Pojęcie opiera się na:
- (en) Equation
- (en) Root of an equation
- Pojęcia oparte na:
- (en) Delta
Ufundowana przez: EU Socrates Minerva, HeyMath!, Cambridge University Press