1

y=1

y=\frac{\sin x}{x}

y=\cos x

$\cos x<\frac{\sin x}{x}<1$であることを，
点$(0,1)$の周りで拡大して調べてみよう．

n = 1 (slider from 1 to 100, step 1)
e = 3 (slider from 0 to 10, step 1)
h(x) = 1
A = Point(yAxis)
B = Point(yAxis)
a = Line(A, B)
C = (-10, 0)
E = (10, 0)
c: 1 / n
d: 1 - c
テキスト2: "" + d + ""
D = Point(xAxis)
F = Point(xAxis)
b = Segment(D, F)
g(x) = (cos(x * c) - 1) / c + 1
f(x) = (sin(c * x) / (c * x) - 1) / c + 1
G = (-0.1, 0.5)
H = (0.1, 0.5)
i = Segment(G, H)
j: 1 - c * 0.5
テキスト6: "" + j + ""