Using MatDeck to do numerical and algebraic calculations is very simple. Just enter the expression and place an **equal sign** at the end of the line, like in the examples below.

Every line can be modified at any time: change any of values in above lines and the result will automatically change. We will do a few more calculations to illustrate an example. Create a power function by using **Shift + 6** key combination.

To create a fraction node, use **Alt + /** key combination, or just / to do a division, without the visual creation of a fraction.

To enter a square root of a number use the **sqrt** function:

MatDeck has a wide range of constants built in, that you can enter by typing the character **c** before a constant name. For example, if you want to enter **π**, you should type **cpi**.

To enter a natural exponential function **e ^{x}** type

**exp**.

For the absolute value function **| |** type **abs**, and the absolute value node will appear.

For the natural logarithm ln( ) use the **log** function.

For trigonometric function cosine, use the **cos** function, and if you want an inverse of cosine function use the **acos** function.

*Just a quick note:* if you try to calculate a value that can’t be calculated, you will get an **undefined** response.