fun

This module contains an assortment of functions that arise in scientific computing.

betaincinv(a, b, y[, method, complement])	Inverse of the regularized incomplete beta function.
cmarcumq(m, a, b)	The "complementary" Marcum Q function.
digammainv(y)	Inverse of the digamma function (real values only).
inv_pow1pm1(t, y)	Inverse with respect to x of pow1pm1(x, y).
inv_powm1(t, y)	Inverse with respect to x of mpmath.powm1(x, y).
logbeta(x, y)	Natural logarithm of \(B(x, y)\).
logbinomial(n, k)	Natural logarithm of binomial(n, k).
logsumexp(logs[, weights])	Compute the log of the sum of exponentials of the input sequence.
marcumq(m, a, b)	The Marcum Q function.
multivariate_logbeta(alpha)	Logarithm of the multivariate beta function.
pow1pm1(x, y)	Compute (x + 1)**y - 1.
roots_legendre(n)	Compute the roots of the Legendre polynomial, and quadrature weights.
xlog1py(x, y)	\(x\textrm{log}(1+y)\)
xlogy(x, y)	\(x\textrm{log}(y)\)