# Functions
Abs returns the absolute value (also called the modulus) of x.
Acos returns the inverse cosine of x.
Acosh returns the inverse hyperbolic cosine of x.
Asin returns the inverse sine of x.
Asinh returns the inverse hyperbolic sine of x.
Atan returns the inverse tangent of x.
Atanh returns the inverse hyperbolic tangent of x.
Conj returns the complex conjugate of x.
Cos returns the cosine of x.
Cosh returns the hyperbolic cosine of x.
Cot returns the cotangent of x.
Exp returns e**x, the base-e exponential of x.
Inf returns a complex infinity, complex(+Inf, +Inf).
IsInf reports whether either real(x) or imag(x) is an infinity.
IsNaN reports whether either real(x) or imag(x) is NaN and neither is an infinity.
Log returns the natural logarithm of x.
Log10 returns the decimal logarithm of x.
NaN returns a complex “not-a-number” value.
Phase returns the phase (also called the argument) of x.
Polar returns the absolute value r and phase θ of x, such that x = r * e**θi.
Pow returns x**y, the base-x exponential of y.
Rect returns the complex number x with polar coordinates r, θ.
Sin returns the sine of x.
Sinh returns the hyperbolic sine of x.
Sqrt returns the square root of x.
Tan returns the tangent of x.
Tanh returns the hyperbolic tangent of x.