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Maple is sometimes very forgiving, e.g. (this is in Standard GUI):
and sometimes not, e.g.
plot(x, 'style' = point, 'numpoints' = 10, 'symbol' = circle); #ok
plot(x, 'style' = point, 'numpoints' = 10, 'symbol' = CIRCLE); #ok
plot(x, 'style' = POINT, 'numpoints' = 10, 'symbol' = CIRCLE); #ok
plot(x, 'STYLE' = POINT, 'NUMPOINTS' = 10, 'SYMBOL' = CIRCLE); #nok
And of course Maple's Number One FAQ:
exp(1); # ok
e^(1); # nok
I think there is a case for having something like this:
load(builtin); #I'm making this up,
load(builtin) --- or restart[builtin]; or whatever --- would load names and aliases for builtin functions like the exponential function, the e constant, etc.. Thus, if it were not loaded, you could use gamma and I to mean whatever you like, and not just the gamma constant and the imaginary unit; but if it were loaded, Maple would treat gamma and I as the builtin functions. In the first releases builtin could be on by default. In addition, certain expressions would trigger an information message from the interface.
Example: If you typed e^(1);
Maple would produce a message like "statement ambiguous, do you mean exp(1)? To turn off this message, enter load(builtin,silent)"