error in the integration of complex functions (FW10077)

[parisse]

(05-02-2016 03:18 PM)Helge Gabert Wrote:  Interesting . . . So why is it that quoting f, i.e., 'f(x,ceiling(x))', works with romberg?

Because the problem is in evaluating f(x,ceiling(x)), not in numerical integration. Quoting prevents evaluation. The program evaluation raises an exception because the test in the loop can not be evaluated with x symbolic, but the Prime does not have exceptions. This means that if I want to fix this bug, I must mimic the exception mechanism by handcoding specific error code (and this is an endless game...)