Microsoft Mathematics provides a set of mathematical tools that help students get school work done quickly and easily. With Microsoft Mathematics, students can learn to solve equations step-by-step while gaining a better understanding of fundamental concepts in pre-algebra, algebra, trigonometry, physics, chemistry, and calculus.

Microsoft Mathematics includes a full-featured graphing calculator that's designed to work just like a handheld calculator. Additional math tools help you evaluate triangles, convert from one system of units to another, and solve systems of equations.

When Microsoft Mathematics opens, you'll see the following elements displayed:
1. Calculator pad
The calculator pad includes a number pad and the following button groups: Complex Numbers, Calculus, Statistics, Trigonometry, Linear Algebra, Standard, and Favorite Buttons.
2. Worksheet tab
The Worksheet tab, displayed by default, is where you'll probably do most of your numerical computing. This tab includes an input pane and an output pane. You can use input mathematical expressions by using the keyboard, mouse, or ink input. When you complete the expression, Microsoft Mathematics evaluates it both symbolically and numerically (if applicable), and then displays the results in the output pane. In some cases, the output may include step-by-step solutions or additional information about the solution.
3. Graphing tab
The Graphing tab can be used to create most mathematical graphs. This tab includes an input pane to enter the functionA mathematical relationship between variables in which the value of one variable determines a unique value for another variable, equationA mathematical statement that two expressions, usually separated by an equal sign, are of the same value, inequality, data set, or parametric equationAn equation in which values to be plotted are expressed as functions of underlying parameters that you want to plot. To work with the graph after you plot it, the Graphing tab also includes a pane that describes what is plotted in the graph, and a graph pane that displays the graph.
4. Ribbon
The Ribbon is designed to help you quickly find the commands that you need to complete a task. Commands are organized in logical groups, which are collected together under tabs. Each tab relates to a type of activity, such as inserting data. To reduce clutter, some tabs are shown only when needed. For example, the Graphing Tools tab is shown only when you are plotting graphs.

About mathematical expressions and evaluation
A mathematical expression is any combination of numbers, variablesA symbol that represents an unspecified or unknown quantity, such as "a," "b," or "x", operators, and functionsA mathematical relationship between variables in which the value of one variable determines a unique value for another variable. For example, a number such as 17 is a mathematical expression, as is the variable x, and the combinations x+17, sin(x), and x - 3. You can enter mathematical expressions by using the mouse, the keyboard, or using ink.

When entering expressions, you use a particular set of rules, or syntax, to make sure that Microsoft Mathematics performs the appropriate calculations. However, Microsoft Mathematics is flexible in interpreting what you enter. For example, if you enter a function name and supply an argument, Microsoft Mathematics automatically supplies missing parentheses. If you type an expression without a function or command, Microsoft Mathematics performs the most likely calculation, automatically supplying the necessary syntax, and in many cases gives you options for additional calculations. For example, if you enter an equation containing a single variable x, Microsoft Mathematics automatically solves for x.

The process of calculating the value of an expression is called evaluation. Microsoft Mathematics evaluates expressions and returns results or answers. Not all results are numbers. For example, if an expression involves a variable such as x or n, and no value is stored with that variable name, the output contains the variable.

The license of this software is Freeware, you can free download and free use this calculator software.