Hier ziehen/bewegen!
Oder direkt an B_n.

Zu S. 117/2 (Mathe 9 I)

p: y = (0.5 * x^(2)) - x - 1.5
a = 1 (slider from -2 to 3, step 0.1)
B_n: (a, p(a))
A = Point(p)
C = Intersect(p, xAxis, 1)
Flächeninhalt_D_r_e_i_e_c_k, c, a_1, b_n = Polygon(A, B_n, C)
Text2: "x = " + a + ""
Text1: "A_{AB_nC} = " + Flächeninhalt_D_r_e_i_e_c_k + " FE"
B = (-5.55425038633972, -1.1728917101529535)
D = (-5.695144670895952, 1.9291929822194707)
u = Vector(B, D)
B_1 = Intersect(p, yAxis, 1)
B_2 = Point(p)
d1, c_1, a_2, b_1 = Polygon(A, B_1, C)
d2, c_2, a_3, b_2 = Polygon(A, B_2, C)
E = (-3.878164777095765, -2.0850640559875835)
F = (0.48822101420701, -2.268170517379484)
v = Vector(E, F)