Tip 117.

Putting into practice the transformation with help of tools of symbol mathematics of Mathcad/Maple it is necessary to remember that the constant is left out under integration. Because of it some misunderstanding between user and Mathcad can appear. Thus sometimes different answers are got if we integrate initial and transformed expression (see fig. 117). Everything will be right if we add integration constant (1, 2 and etc.) to the answer ourselves. (Continuation of this theme see in the tip 120.)