f(x) = ℯ^(x)
c = 0 (slider from -5 to 5, step 0.1)
g: y = (ℯ^(2) - 1) / ((2 * ℯ))
h(x) = abs(f(x) - g(x))
a = IntegralBetween(f, ((-(x(g) / y(g))) * x) - z(g) / y(g), -1, 1)
b = Surface((t * cos(s)), ℯ^(t), (t * sin(s)), t, -1, 1, s, 0, (2 * π))
d = Surface(t, (ℯ^(2) - 1) / ((2 * ℯ)) + (abs(ℯ^(t) - (ℯ^(2) - 1) / ((2 * ℯ))) * cos(s)), (abs(ℯ^(t) - (ℯ^(2) - 1) / ((2 * ℯ))) * sin(s)), t, -1, 1, s, 0, (2 * π))
e = Surface(cos(s), ℯ^(t), sin(s), t, -1, 1, s, π / 2, (2 * π))
i: y = 1