The Evaluate tab allows you to evaluate any Mathematica expression that resolves to a scalar. This tab is similar to Mathematica's "notebook" interface.
The Input Text Box
The Input text box should be used for entering Mathematica expressions. Note that multiple lines can be entered into this edit box.
The Output Text Box
The Output text box displays the results from Mathematica . The output from subsequent evaluations during a session are appended to previous output. You can click and select multiple lines of output and then copy to another application or delete the lines.
The Evaluate Button
The Evaluate button sends the expressions in the Input text box to Mathematica, and then displays the results in the Output text box.