Returns the integer portion of EXPR. If EXPR is omitted, uses $_. You should not use this function for rounding: one because it truncates towards 0, and two because machine representations of floating-point numbers can sometimes produce counterintuitive results. For example, int(-6.725/0.025) produces -268 rather than the correct -269; that's because it's really more like -268.99999999999994315658 instead. Usually, the sprintf, printf, or the POSIX::floor and POSIX::ceil functions will serve you better than will int. Moreover, int 'Inf' produces Inf (see "Special floating point: infinity (Inf) and not-a-number (NaN)" in perldata for explanation), but so do all the alternative methods mentioned above.
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