Tracer C

Cf(x) = 0.5 * (exp(1 + x) + exp(1 - x))
Cg(x) = 0.5 * (exp(1 + x) - exp(1 - x))
a = 0.3 (slider from -5 to 5, step 0.1)
A: (a, Cf(a))
B: (a, Cg(a))
T_A = Tangent(A, Cf)
T_B = Tangent(B, Cg)
M = Intersect(T_A, T_B)
Cexp(x) = exp(x)
b = false