Package cmplx
Overview ▸
Index ▸
func Abs ¶ ¶
func Abs(x complex128) float64
Abs returns the absolute value (also called the modulus) of x.
▸ Example
func Acos ¶ ¶
func Acos(x complex128) complex128
Acos returns the inverse cosine of x.
func Acosh ¶ ¶
func Acosh(x complex128) complex128
Acosh returns the inverse hyperbolic cosine of x.
func Asin ¶ ¶
func Asin(x complex128) complex128
Asin returns the inverse sine of x.
func Asinh ¶ ¶
func Asinh(x complex128) complex128
Asinh returns the inverse hyperbolic sine of x.
func Atan ¶ ¶
func Atan(x complex128) complex128
Atan returns the inverse tangent of x.
func Atanh ¶ ¶
func Atanh(x complex128) complex128
Atanh returns the inverse hyperbolic tangent of x.
func Conj ¶ ¶
func Conj(x complex128) complex128
Conj returns the complex conjugate of x.
func Cos ¶ ¶
func Cos(x complex128) complex128
Cos returns the cosine of x.
func Cosh ¶ ¶
func Cosh(x complex128) complex128
Cosh returns the hyperbolic cosine of x.
func Cot ¶ ¶
func Cot(x complex128) complex128
Cot returns the cotangent of x.
func Exp ¶ ¶
func Exp(x complex128) complex128
Exp returns e**x, the base-e exponential of x.
▸ Example
func Inf ¶ ¶
func Inf() complex128
Inf returns a complex infinity, complex(+Inf, +Inf).
func IsInf ¶ ¶
func IsInf(x complex128) bool
IsInf reports whether either real(x) or imag(x) is an infinity.
func IsNaN ¶ ¶
func IsNaN(x complex128) bool
IsNaN reports whether either real(x) or imag(x) is NaN and neither is an infinity.
func Log ¶ ¶
func Log(x complex128) complex128
Log returns the natural logarithm of x.
func Log10 ¶ ¶
func Log10(x complex128) complex128
Log10 returns the decimal logarithm of x.
func NaN ¶ ¶
func NaN() complex128
NaN returns a complex “not-a-number” value.
func Phase ¶ ¶
func Phase(x complex128) float64
Phase returns the phase (also called the argument) of x. The returned value is in the range [-Pi, Pi].
func Polar ¶ ¶
func Polar(x complex128) (r, θ float64)
Polar returns the absolute value r and phase θ of x, such that x = r * e**θi. The phase is in the range [-Pi, Pi].
▸ Example
func Pow ¶ ¶
func Pow(x, y complex128) complex128
Pow returns x**y, the base-x exponential of y. For generalized compatibility with math.Pow:
Pow(0, ±0) returns 1+0i Pow(0, c) for real(c)<0 returns Inf+0i if imag(c) is zero, otherwise Inf+Inf i.
func Rect ¶ ¶
func Rect(r, θ float64) complex128
Rect returns the complex number x with polar coordinates r, θ.
func Sin ¶ ¶
func Sin(x complex128) complex128
Sin returns the sine of x.
func Sinh ¶ ¶
func Sinh(x complex128) complex128
Sinh returns the hyperbolic sine of x.
func Sqrt ¶ ¶
func Sqrt(x complex128) complex128
Sqrt returns the square root of x. The result r is chosen so that real(r) ≥ 0 and imag(r) has the same sign as imag(x).
func Tan ¶ ¶
func Tan(x complex128) complex128
Tan returns the tangent of x.
func Tanh ¶ ¶
func Tanh(x complex128) complex128
Tanh returns the hyperbolic tangent of x.