up previous next
group several commands into a single command
block C_1; ... ; C_n EndBlock;
where each C_i is a command.
|
The
block
command executes the commands as if they where one
command. What this means in practice is that CoCoA will not print a
string of dashes after executing each
C_i
. Thus,
Block
is used
on-the-fly and not inside user-defined functions. (It has nothing to
do with declaration of local variables, for instance, as one might
infer from some other computer languages.) The following example
should make the use of
Block
clear:
/**/ Print "hello "; Print "world";
hello world
-------------------------------
/**/ Block
/**/ Print "hello ";
/**/ Print "world";
/**/ EndBlock;
hello world
-------------------------------
/**/ Block
/**/ PrintLn GCD([12, 24, 96]);
/**/ PrintLn LCM([12, 24, 96]);
/**/ PrintLn GCD([x+y, x^2-y^2]);
/**/ Print LCM([x+y, x^2-y^2]);
/**/ EndBlock;
12
96
x + y
x^2 - y^2
-------------------------------
|