Name:

worstcase searches for hard-to-round cases of a function

Usage:

worstcase(function, preimage precision, preimage exponent range, image precision, error bound) : (function, integer, range, integer, constant) -> void worstcase(function, preimage precision, preimage exponent range, image precision, error bound, filename) : (function, integer, range, integer, constant, string) -> void

Parameters:

Description:

Example 1:

   > worstcase(exp(x),24,[1,2],24,1b-26);
   prec = 165
   x = 1.99999988079071044921875 f(x) = 7.3890552520751953125 eps = 4.5998601423446695596184695493764120138001954979037e-9 = 2^(-27.695763)
   x = 2 f(x) = 7.38905620574951171875 eps = 1.44563608749673018122228379395533417878125150587072e-8 = 2^(-26.043720)
   
See also: round, searchgal, evaluate
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