To do simple aritmatic computations type the numbers into the field just below the toolbar. To start a calculation press :kbd:`enter` or press the :guilabel:`=` button. To add multiple numbers press :kbd:`+` or click the :guilabel:`+` button. To subtract two numbers press :kbd:`-` or click :guilabel:`-`. To multiply two numbers press :kbd:`*` or click :guilabel:`x`. To divide two numbers press :kbd:`/` or click the :guilabel:`/` button. To input decimals into Qalculate! type :kbd:`.` as the decimal point or click :guilabel:`.` To input the last answer you calculated click the :guilabel:`ANS` button. To delete the last character you typed press :kbd:`backspace` or click the :guilabel:`trash can` button. To clear all you have inputted left click the :guilabel:`Leftward pointing arrow with an x` button. To start doing an operation first use a parenthesis to do an operation first :kbd:`(` or click :guilabel:`(`. To close the operation you want to do first in order of operations use a close parenthesis so press :kbd:`)` or left click on :guilabel:`)`. To have both an open and close paraenthes click the :guilabel:`(x)` button. If you have an error in your syntax an orange triangle will show up. To get more information on what your error is mouseover the orange triangle.
