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krogelni krog

n = 0 (slider from 0 to 3, step 0.05)
u = If(n < 2, 0, (n - 2) 2)
D = (3.27, -2.3)
B = (2.6457513110645907, 3)
O = (0, 0)
C = (-3.27, -2.3)
A = (-2.6457513110645907, 3)
r = 4
s = If(n > 1, 4, 4 n)
S: (0, s)
A_1: (-sqrt(7), s + 3)
B_1: (sqrt(7), s + 3)
a = Segment(A, O)
b = Segment(O, B)
f = Segment(S, B_1)
g = Segment(A_1, S)
f_1(x) = s + 3 - sqrt(7 - x²) / 5
f_2(x) = s + 3 + sqrt(7 - x²) / 5
h = CircleArc(S, B_1, A_1)
f_6(x) = s + sqrt(16 - x²)
i = Integral(f_6, f_1, -2.6457513110645907, 2.6457513110645907)
f_5(x) = 1.13 abs(x) + s
j = Integral(f_1, f_5, -2.64, 2.64)
f_3(x) = 1.13 abs(x)
f_4(x) = 3 - sqrt(7 - x²) / 5
k = Integral(f_3, f_4, -2.64, 2.64)
t = If(n < 1, 0, (n - 1) 2)
V: (0, -4 - t)
C_1: (-2.26, -3.3 - t)
D_1: (2.26, -3.3 - t)
S_1: (0, -t)
p = CircleArc(S_1, C_1, D_1)
y_o: y(C_1)
q: x² / 2.26² + 25 (y - y_o)² / 2.26² = 1
g_1(x) = -3.3 - t - sqrt(0.2 (1 - x² / 5.11))
D_2: (2.26, -3.3 - u)
e = CircleArc(O, A, C)
c_1 = CircleArc(O, D, B)
h_1(x) = -2.3 - sqrt(0.43 (1 - x² / 10.69))
h_2(x) = -2.3 + sqrt(0.43 (1 - x² / 10.69))
Integral(h_1, h_2, -3.27, 3.27)
Integral(h_1, h_2, -3.27, 3.27)
Integral(h_1, h_2, -3.27, 3.27)
l = Integral(h_1, h_2, -3.26, 3.26)
C_2: (-2.26, -3.3 - u)
C_3: (-3.27, -2.3 - u)
D_3: (3.27, -2.3 - u)
S_2: (0, -u)
e_1 = CircleArc(S_2, C_3, C_2)
k_1 = CircleArc(S_2, D_2, D_3)
p_1: x² / 10.69 + (y + 2.3 + u)² / 0.43 = 1
y_p: y(C_2)
q_1: x² / 2.26² + 25 (y - y_p)² / 2.26² = 1
g_3(x) = -sqrt((1 - x² / 5.11) 5.11 / 25) + y_p
g_4(x) = sqrt((1 - x² / 5.11) 5.11 / 25) + y_p
m = Integral(g_3, g_4, -2.25, 2.25)