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Re^2: Perl oddities

by fizbin (Chaplain)
on Mar 03, 2005 at 23:38 UTC ( #436406=note: print w/ replies, xml ) Need Help??


in reply to Re: Perl oddities
in thread Perl oddities

Note that I've seen the pattern of providing sin, cos and atan (but not other trig functions) in other libraries and programming languages. And the reason for this (that so far as I can tell no one has yet said) is simple: those functions are defined for all values of their argument. tan isn't. arcsin and arccos aren't.

Not that it's necessarily a very good reason, mind you.

-- @/=map{[/./g]}qw/.h_nJ Xapou cets krht ele_ r_ra/; map{y/X_/\n /;print}map{pop@$_}@/for@/


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Re^3: Perl oddities
by Anonymous Monk on Mar 04, 2005 at 10:26 UTC
    And the reason for this (that so far as I can tell no one has yet said) is simple: those functions are defined for all values of their argument. tan isn't. arcsin and arccos aren't. Well, division isn't defined for all values of its arguments either, and neither are log and sqrt. So, I agree it's not much of a reason at all.

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