plot min(max(0.1073x(1 25.125/(x^2 3.125)), -1), 1) - tanh(x), x=-6,6 y=-0.015,0.015

Uh oh! Wolfram|Alpha doesn't run without JavaScript.

Please enable JavaScript. If you don't know how, you can find instructionshere.Once you've done that, refresh this page to start using Wolfram|Alpha.