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1.1.1 Basic Tutorial for CoCoA-5
Use the command
to get out of CoCoA-5. It is important to type
the semicolon ";" after the word "ciao". As a rule, you should put a
semicolon after every CoCoA-5 command. After receiving the
command, it may occasionally take a few seconds for CoCoA-5 to fully
If CoCoA is busy computing, it will not heed any further commands
) until the computation ends. When CoCoA-5 is
ready for a new command it prints out a prompt; if the previous input
was incomplete, this is indicated by a different prompt.
If CoCoA-5 is taking too long with a computation you may "interrupt" it
(i.e. forcibly end it prematurely); it may take a few seconds for
CoCoA-5 to react after you give the interrupt signal. CoCoA-5 will print
a prompt when the computation has been stopped; it is then ready to
receive new commands. The correct way to interrupt a CoCoA computation
depends on the user interface (and operating system).
If you are still stuck inside CoCoA, you can try
note the extra two characters "star" and "slash" at the start. You may
need to type this twice.