Equation de second degré
Author: SAI.Fethi

c = -4.799999999999999 (slider from -10 to 10, step 0.1)
b = 1.6000000000000014 (slider from -10 to 10, step 0.1)
a = -0.09999999999999964 (slider from -5 to 5, step 0.1)
delta: b^(2) - 4 a c
d: y = a x^(2) + b x + c
T1: "\Delta = " + (b^(2) - 4 a c)
A = Point(d)
T2: "x_1 = " + ((-b + sqrt(delta)) / (2 a))
T3: "x_2 = " + ((-b - sqrt(delta)) / (2 a))
x1: (-b + sqrt(delta)) / (2 a)
x2: (-b - sqrt(delta)) / (2 a)
B: (x1, 0)
C: (x2, 0)
T4: x1 + ""
T5: x2 + ""
T7: "y = " + a + "x^{2} + " + b + "x +" + c
f = OrthogonalLine(A, yAxis)
g = OrthogonalLine(A, e)
D = Intersect(f, yAxis)
E = Intersect(g, xAxis)
h = Segment(A, D)
i = Segment(A, E)
T6: y(A) + ""
T8: x(A) + ""