class numbers.Real To Complex, Real adds the operations that work on real numbers.

add(x, y) Return the sum of x and y.

math.atan(x) Return the arc tangent of x, in radians.

class decimal.DecimalException Base class for other signals and a subclass of

log10(x) Returns the base 10 logarithm of x.

class decimal.Rounded Rounding occurred though possibly no information was lost. Signaled whenever

same_quantum(other, context=None) Test whether self and other have the same exponent or whether both are NaN.

cmath.log10(x) Return the base-10 logarithm of x. This has the same branch cut as log().

math.factorial(x) Return x factorial. Raises

abs(x) Returns the absolute value of x.