Wolfram Research, Inc.
1.3.12 Interrupting Calculations
There will probably be times when you want to stop Mathematica in the middle of a calculation. Perhaps you realize that you asked Mathematica to do the wrong thing. Or perhaps the calculation is just taking a long time, and you want to find out what is going on.
The way that you interrupt a Mathematica calculation depends on what kind of interface you are using.
Typical keys to interrupt calculations in Mathematica.
On some computer systems, it may take Mathematica some time to respond to your interrupt. When Mathematica does respond, it will typically give you a menu of possible things to do.
Some typical options available when you interrupt a calculation in Mathematica.