e(0)
e(0.5)
e(1)
e(1.5)
e(1.74)
e(2)
e(3.2345)
e(5.283957)
e(13.23857)
e(100)
e(283.238957)
e(-0.5)
e(-1)
e(-1.5)
e(-1.74)
e(-2)
e(-3.2345)
e(-5.283957)
e(-13.23857)
e(-100)
e(-283.238957)
e(142.749502399)