Agena

2.21.4, July 04, 2020 - The new function `copyadd` copies all elements in a table, sequence or register and any further arguments into a new structure. - The new function `tables.getsizes` returns the estimated or actual number of elements currently stored in the array and hash part of a table. - The new function `calc.curvature` determines the curvature of a real univariate or multivariate function at a given point. - `calc.eulerdiff` can now compute second derivatives by passing the new `deriv = 2` option. The quality of the second derivatives are close to, but not as good as, those of `calc.xpdiff`. (The first derivatives of `eulerdiff` are still better than those of `xpdiff`.) - `The new function `calc.gauleg` computes the integral of a univariate function using Gauss-Legendre integration. It is five times faster than `calc.integ` with comparable precision. - The new function `calc.variance` returns an estimate on whether a univariate function changes slowly or rapidly on a given interval. - The new function `calc.fmings` estimates the minimum location of a univariate function over a given range, using Golden section search only. - Documented function `calc.fminbr` which estimates the minimum location of a univariate function over a given range, using Golden section search combined with parabolic interpolation. - `calc.integ` has been improved in that with finite integrals, it switches to a second method if the first one fails. - If `calc.arclen` could not find a solution at first, it will now automatically try an alternative to compute a result.