# math

The math module provides some basic mathematical functions for working with floating-point numbers. Floating point support required for this module.

## Methods

#### math.acos\(x\)

Return the inverse cosine of `x`.

#### math.acosh\(x\)

Return the inverse hyperbolic cosine of `x`.

#### math.asin\(x\)

Return the inverse sine of `x`.

#### math.asinh\(x\)

Return the inverse hyperbolic sine of `x`.

#### math.atan\(x\)

Return the inverse tangent of `x`.

#### math.atan2\(y, x\)

Return the principal value of the inverse tangent of `y/x`.

#### math.atanh\(x\)

Return the inverse hyperbolic tangent of `x`.

#### math.ceil\(x\)

Return an integer, being x rounded towards positive infinity.

#### math.copysign\(x, y\)

Return x with the sign of `y`.

#### math.cos\(x\)

Return the cosine of `x`.

#### math.cosh\(x\)

Return the hyperbolic cosine of `x`.

#### math.degrees\(x\)

Return radians `x` converted to degrees.

#### math.erf\(x\)

Return the error function of `x`.

#### math.erfc\(x\)

Return the complementary error function of `x`.

#### math.exp\(x\)

Return the exponential of `x`.

#### math.expm1\(x\)

Return `exp(x) - 1`.

#### math.fabs\(x\)

Return the absolute value of `x`.

#### math.floor\(x\)

Return an integer, being `x` rounded towards negative infinity.

#### math.fmod\(x, y\)

Return the remainder of `x/y`.

#### math.frexp\(x\)

Decomposes a floating-point number into its mantissa and exponent. The returned value is the tuple `(m, e)` such that `x == m * 2**e` exactly. If `x == 0` then the function returns `(0.0, 0)`, otherwise the relation `0.5 <= abs(m) < 1` holds.

#### math.gamma\(x\)

Return the gamma function of `x`.

#### math.isfinite\(x\)

Return `True` if `x` is finite.

#### math.isinf\(x\)

Return `True` if `x` is infinite.

#### math.isnan\(x\)

Return `True` if `x` is not-a-number

#### math.ldexp\(x, exp\)

Return `x * (2**exp)`.

#### math.lgamma\(x\)

Return the natural logarithm of the gamma function of `x`.

#### math.log\(x\)

Return the natural logarithm of `x`.

#### math.log10\(x\)

Return the base-10 logarithm of `x`.

#### math.log2\(x\)

Return the base-2 logarithm of `x`.

#### math.modf\(x\)

Return a tuple of two floats, being the fractional and integral parts of `x`. Both return values have the same sign as `x`.

#### math.pow\(x, y\)

Returns `x` to the power of `y`.

#### math.radians\(x\)

Return degrees `x` converted to radians.

#### math.sin\(x\)

Return the sine of `x`.

#### math.sinh\(x\)

Return the hyperbolic sine of `x`.

#### math.sqrt\(x\)

Return the square root of `x`.

#### math.tan\(x\)

Return the tangent of `x`.

#### math.tanh\(x\)

Return the hyperbolic tangent of `x`.

#### math.trunc\(x\)

Return an integer, being `x` rounded towards `0`.

## Constants

* `math.e`: Base of the natural logarithm
* `math.pi`: The ratio of a circle’s circumference to its diameter