The math cmplx library

Overview

The cmplx library provides basic constants and mathematical functions for complex numbers. Special case handling conforms to the C99 standard Annex G IEC 60559- compatible complex arithmetic.

Modules

("math/cmplx")

("math")

("strconv")

Types

Complex = wrapper complex128

The complex number type.

Functions

Complex(a float, b float) -> Complex

Constructs a Complex value from two float values representing its real and imaginary parts.

(x Complex) + (y Complex) -> Complex

Adds two Complex values.

(x Complex) - (y Complex) -> Complex

Subtracts one Complex value from another.

(x Complex) * (y Complex) -> Complex

Multiplies two Complex values.

(x Complex) / (y Complex) -> Complex

Divides one Complex value by another.

(x Complex) ^ (y Complex) -> Complex

Exponentiates one Complex value by another.

(x Complex) ^ (y float) -> Complex

Exponentiates a Complex value by a float.

abs(x Complex) -> float

Returns the modulus of x.

acos(x Complex) -> Complex

Returns the inverse cosine of x.

acosh(x Complex) -> Complex

Returns the inverse hyperbolic cosine of x.

asin(x Complex) -> Complex

Returns the inverse sine of x.

asinh(x Complex) -> Complex

Returns the inverse hyperbolic sine of x.

atan(x Complex) -> Complex

Returns the inverse tangent of x.

atanh(x Complex) -> Complex

Returns the inverse hyperbolic tangent of x.

conj(x Complex) -> Complex

Returns the complex conjugate of x.

cos(x Complex) -> Complex

Returns the cosine of x.

cosh(x Complex) -> Complex

Returns the hyberbolic cosine of x.

cot(x Complex) -> Complex

Returns the cotangent of x.

exp(x Complex) -> Complex

Returns the exponent of x.

imag(x Complex) -> float

Returns the imaginary part of x.

inf -> Complex

Returns infinity.

isInf(x Complex) -> bool

Tests whether x is infinity.

isNaN(x Complex) -> bool

Tests whether x is naN.

log(x Complex) -> Complex

Returns the natural logarithm of x.

log_10(x Complex) -> Complex

Returns the logarithm to the base 10 of x.

naN -> Complex

Returns naN

phase(x Complex) -> float

Returns the phase of x.

polar(x Complex) -> float, float

Returns the polar co-ordinates of x.

real(x Complex) -> float

Returns the real part of x.

rect(r float, θ float) -> Complex

Converts polar co-ordinates into a Complex value.

sin(x Complex) -> Complex

Returns the sine of x.

sinh(x Complex) -> Complex

Returns the hyberbolic since of x.

sqrt(x Complex) -> Complex

Returns a square root of x.

string(z Complex) -> string

Represents z as a string.

tan(x Complex) -> Complex

Returns the tangent of x.

tanh(x Complex) -> Complex

Returns the hyberbolic tangent of x.

Notes

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