I work with WIN7, WIN XP, and WIN 2k. I use MCD-15, -11, -2001.
In all cases I find an error when calculating a definite integral. The error looks as follows: the location of a constant "a" inside the integral leads to a different solution compared with the case with the consant "a" outside the integral. This behaviour hurts the basic mathematical relationship in (1):
The result of a simple calculation approach can be studied in the following graph (solid = wrong = left side of (1)n; dotted = right = right side of (1):
In most cases it won't be possible to move constants outside the integral, hence, there should be a bug correction asap!