# Gsl (gb.gsl)

This class provides useful mathematical functions and constants.

Esta clase es estática.

Constantes
 E The base of exponentials, e = `Exp(1)`. EULER Euler’s constant, γ. INV2_PI Twice the reciprocal of pi, 2/π = `2 / Pi`. INV2_SQRTPI Two divided by the square root of pi, 2/√π = `2 / Sqr(Pi)`. INV_PI The reciprocal of pi, 1/π = `1 / Pi`. LN10 The natural logarithm of ten, ln(10) = `Log(10)`. LN2 The natural logarithm of two, ln(2) = `Log(2)`. LNPI The natural logarithm of pi, ln(π) = `Log(Pi)`. LOG10E The base-10 logarithm of e, log10(e) = `Log10(Exp(1))`. LOG2E The base-2 logarithm of e, log2(e) = `Log2(Exp(1))`. PI The constant pi, π = `Pi`. PI_2 PI_4 SQRT1_2 The square root of one-half, √ 1/2 = `Sqr(0.5)`. SQRT2 The square root of two, √2 = `Sqr(2)`. SQRT3 The square root of three, √3 = `Sqr(3)`. SQRTPI The square root of π, √/π/ = `Sqr(Pi)`.

Métodos estáticos
 Acosh This function computes the value of arccosh(x). Asinh This function computes the value of arcsinh(x). Atanh This function computes the value of arctanh(x). Expm1 This function computes the value of exp(x) − 1 in a way that is accurate for small x. Fcmp This function determines whether X and Y are approximately equal to a relative accuracy epsilon E. Frexp This function splits the number X into its normalized fraction F and exponent E, such that `X = F * (2 ^ E)` and `0.5 < F < 1`. Hypot This function computes the value of √( x ² + y ²) in a way that avoids overflow. Hypot3 This function computes the value of √( x ² + y ² + z ²) in a way that avoids overflow. IsFinite This function returns `TRUE` if X is a real number, and `FALSE` if it is infinite or not-a-number. IsInf This function returns `+1` if X is positive infinity, `−1` if X is negative infinity and `0` otherwise. IsNan This function returns TRUE if X is not-a-number. Ldexp This function computes the value of `X * (2 ^ E)`. Log1p This function computes the value of log(1 + x) in a way that is accurate for small x.