Jose Inklys Landmarks of Arajo Sousa1 Jssica Thaylana Da Silva Arajo2 SUMMARY the mathematics is very important in the academic life of the pupils, even because if not to obtain to get good notes in this he disciplines the pupil is disapproved. Only that the mathematics is not very understandable for the heads of some pupils, many complain of the high complexity of the calculations and that they do not obtain to follow the group, some give up discipline and others are in the same room if to understand nothing, thinking about this difficulty some companies they had started to develop programs capable to calculate mathematical expressions, since a simple calculation up to one more complex, exist some program capable to play this function, but one of the best ones is a tool that recently was launched a version freeware, the same was developed by Microsoft Corporation needs a program that serves as a species of library Microsoft Framework, this tool if calls Microsoft Mathematics, and is one of the best ones when if we speak in calculations of high complexity, we will argue its functions and we will make an evaluation of the same in this article. Word-keys: mathematics, Microsoft Mathematics, calculation. ABSTRACT The math is very important in the academic life of students, because if you can not get good this gratings in course the student is failing. But the math is not very comprehensible you the minds of adds students, many complain about the high computational complexity and can not follow the crowd, adds gave up the course and others ploughs in the room even if you understand anything, thinking that the difficulty adds companies have begun develop programs that calculate mathematical expressions, from simple calculation you a lives complex, there ploughs several programs that can perform this function, but one of the best is tool that was recently released freeware version, it was developed by Microsoft Corporation needs it program that serves a kind of Microsoft Framework library, this tool is called Microsoft Math, and is one of the best when we talk about highly complex calculations, we will discuss to their you roll and an evaluation of it in this article.