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Error of tan/tanf in libm.


Hi:
    I'm testing libm on m68k platform.
    But I found that there are erros in some functions in libm.
    Like tan/tanf.For example,tanf(0.25) shoud be  close to 0.2553419.
    But when I test tan/tanf in native platform(cygwin on x86)
    And tan/tanf on m68k platform.
    The return is 2.0.Why?
    Do anyone know other errors in libm?
 
    Thanks!
 
 
   
 

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