acos | `acos(`*x*)
Returns the arccosine of *x* in radians. | math and cmath |

acosh | `acosh(`*x*)
Returns the arc hyperbolic cosine of *x* in radians. | cmath only |

asin | `asin(`*x*)
Returns the arcsine of *x* in radians. | math and cmath |

asinh | `asinh(`*x*)
Returns the arc hyperbolic sine of *x* in radians. | cmath only |

atan | `atan(`*x*)
Returns the arctangent of *x* in radians. | math and cmath |

atanh | `atanh(`*x*)
Returns the arc hyperbolic tangent of *x* in radians. | cmath only |

atan2 | `atan2(`*y,x*)
Like `atan(`*y*`/`*x*`)`, except that `atan2` properly takes into account the signs of both arguments. For example:
>>> import math
>>> math.atan(-1./-1.)
0.78539816339744828
>>> math.atan2(-1., -1.)
-2.3561944901923448
Also, when *x* equals `0, atan2` returns `pi/2`, while dividing by *x* would raise `ZeroDivisionError`.
| math only |

ceil | `ceil(`*x*)
Returns `float(`*i*`)`, where *i* is the lowest integer such that *i* `>=` *x*. | math only |

cos | `cos(`*x*)
Returns the cosine of *x* in radians. | math and cmath |

cosh | `cosh(`*x*)
Returns the hyperbolic cosine of *x* in radians. | math and cmath |

e | The mathematical constant e. | math and cmath |

exp | `exp(`*x*)
Returns `e**`*x*. | math and cmath |

fabs | `fabs(`*x*)
Returns the absolute value of *x*. | math only |

floor | `floor(`*x*)
Returns `float(`*i*`)`, where *i* is the highest integer such that *i* `<=` *x*. | math only |

fmod | `fmod(`*x,y*)
Returns the float *r*, with the same sign as *x*, such that *r*`==`*x*`-`*n*`*`*y* for some integer *n*, and `abs(`*r*`)<abs(`*y*`)`. Like *x*`%`*y*, except that, when *x* and *y* differ in sign, *x*`%`*y* has the same sign as *y*, not the same sign as *x*. | math only |

frexp | `frexp(`*x*)
Returns a pair `(`*m*`,`*e*`)` with the so-called "mantissa" (in fact, the significand) and exponent of *x. m* is a floating-point number, and *e* is an integer such that *x*`==`*m*`*(2**e)` and `0.5<=abs(`*m*`)<1`, except that `frexp(0)` returns `(0.0,0)`. | math only |

hypot | `hypot(`*x,y*)
Returns `sqrt(`*x*`*`*x*`+`*y*`*`*y*`)`. | math only |

ldexp | `ldexp(`*x,i*)
Returns *x*`*(2**`*i*`)` (*i* should be an `int`; if *i* is a `float`, *i* gets truncated, but that situation also produces a warning). | math only |

log | `log(`*x*)
Returns the natural logarithm of *x*. | math and cmath |

log10 | `log10(`*x*)
Returns the base-10 logarithm of *x*. | math and cmath |

modf | `modf(`*x*)
Returns a pair `(`*f*`,`*i*`)` with fractional and integer parts of *x*, meaning two `float`s with the same sign as *x* such that *i*`==int(`*i*`)` and *x*`==`*f*`+`*i*. | math only |

pi | The mathematical constant π. | math and cmath |

pow | `pow(`*x,y*)
Returns *x*`**`*y*. | math only |

sin | `sin(`*x*)
Returns the sine of *x* in radians. | math and cmath |

sinh | `sinh(`*x*)
Returns the hyperbolic sine of *x* in radians. | math and cmath |

sqrt | `sqrt(`*x*)
Returns the square root of *x*. | math and cmath |

tan | `tan(`*x*)
Returns the tangent of *x* in radians. | math and cmath |

tanh | `tanh(`*x*)
Returns the hyperbolic tangent of *x* in radians. | math and cmath |