This HTML5 app is a function grapher that also draws the graphs of the 1st and 2nd derivative functions if desired. The following symbols can be entered:

x | independent variable |

+ | plus |

− | minus |

* | multiplied by |

/ | divided by |

^ | power |

(...) | bracket |

abs(...) | absolute value |

sqrt(...) | square root |

exp(...) | natural exponential function |

ln(...) | natural logarithm |

sin(...) | sine |

cos(...) | cosine |

tan(...) | tangent |

arcsin(...) | arcsine |

arccos(...) | arccosine |

arctan(...) | arctangent |

sinh(...) | hyperbolic sine |

cosh(...) | hyperbolic cosine |

tanh(...) | hyperbolic tangent |

arsinh(...) | inverse hyperbolic sine |

arcosh(...) | inverse hyperbolic cosine |

artanh(...) | inverse hyperbolic tangent |

e | Euler's number e |

pi | circle number π |

Note that multiplication signs (*) must not be omitted. For example, 2*x has to be entered instead of 2x.