I ran into the following problem:
It appears that I can not load <<NumericalMath`ListIntegrate` package every time I want to.
When I start with a clear worksheet and load the package then I have no problem. But when I load it in the middle of the worksheet, then I get the following message:
SetDelayed::"write": "Tag ListIntegrate in ListIntegrate[cl_ ? VectorQ, h_, k_Integer : 4]
Does anybody know why this happens. it should not matter where in the notebook I load the package, but apparently it does. Is there any workaround?