adjusted() Return the adjusted exponent after shifting out the coefficient’s rightmost digits until only the lead digit remains:

divide(x, y) Return x divided by y.

cmath.pi The mathematical constant π, as a float.

cmath.phase(x) Return the phase of x (also known as the argument of x), as a float. phase(x)

math.isclose(a, b, *, rel_tol=1e-09, abs_tol=0.0) Return True if the values a and b are close

cmath.asin(x) Return the arc sine of x. This has the same branch cuts as acos().

class numbers.Rational Subtypes Real and adds numerator and denominator properties, which

to_sci_string(x) Converts a number to a string using scientific notation.

math.isinf(x) Return True if x is a positive or negative infinity, and False otherwise.

normalize(x) Reduces x to its simplest form.