This is a simple multifunction calculator, which also includes some useful calculus tools. It can take numerical derivatives and integrals, including iterated integrals. Type a command in the box and press enter to evaluate it.

x = 5 + sqrt(2)

f(x,y) = x^y

f(2,3)

PI | The best approximation of PI |

E | The best approximation of the base of the natural logarithm. |

ans | The value of the last result. |

abs(x) | Absolute value of x. |

acos(x) | Inverse cosine of x. |

asin(x) | Inverse sine of x. |

atan(x) | Inverse tangent of x. |

ceil(x) | Ceiling of x. |

cos(x) | Cosine of x. |

delta(expression, var, lower, upper) | Difference between expression evaluated at var = upper and at var = lower. |

exp(x,y) | Same as x^y. |

floor(x) | Floor of x. |

fnInt(expression, var, lower, upper) | Integral of expression with respect to var from lower to upper. |

ln(x) | Natural logarithm of x. |

log(x) | Log base 10 of x. |

max(x,y) | Max of x or y. |

min(x,y) | Min of x or y. |

nDeriv(expression, var, value) | Derivative of expression with respect to var at value. |

random() | Random value between 0 and 1. |

round(x) | Round x to nearest integer. |

sin(x) | Sine of x. |

sqrt(x) | Square root of x. |

tan(x) | Tangent of x. |