Agena

Agena is an easy-to-learn procedural programming language suited to be used in scientific, educational, linguistic, and many other applications, including scripting.

• The new function `calcisdiff` checks for the differentiability of a univariate or multivariate function at a point
• `calcxpdiff` can now process multivariate functions f As such, the epsilon and delta arguments must now be passed as options of the form eps=, delta=, with both defaults now determined by the magnitude of f's first argument, eg diffxpdiff(f, 1, 2, 3, delta=1e-7, eps=1e-8)
• Fixed `hashesmd5` which sometimes produced wrong MD5 values
• `mathrandom` did not recognise its third argument when given The function also did not recognise very large lower and upper bounds properly and sometimes returned out-of-range results when given a lower or upper limit This has all been fixed
• The `restart` statement did not reset the seeds for `mathrandom` This has been fixed
• If called without arguments, `mathrandomseed` now returns the current seeds
• `expx2` returned `undefined` with values towards -/+infinity This has been fixed The second argument has become optional and by default is positive, ie exp(x*x) is computed
• `mathnorm` did not recognise its third argument when given and always normalised to the range [0, 1] This has been fixed Optimised code of the `stats` and `calc` packages, and `linalggsolve`
• The C API function `agn_getpairnumbers` has been renamed to `agn_getpairinumbers` A macro has been provided to ensure backward compatibility
• Added eComStation OS/2 YUM installation instructions to the manual