From: nma@12000.org   
      
   I was answering someone question on Matlab forum, and noticed   
   something interesting.   
      
   Maple:   
   ========   
   Digits::60: sin(2*10^30): evalf(%);   
   0.17950046751493908795061771231643809505098047699633484280836744\   
      698514457349325219   
      
   Matematica:   
   ===========   
   In[21]:= N[Sin[2*10^30], 60]   
   Out[21]= 0.179500467514939087950617712316438095050980476996334842808367   
      
   Mupad:   
   ======   
   Digits:=60:   
   simplify(sin(2.0*10^30));   
   -0.6054240282319655434839500429688996518962085247039794921875   
      
   But when calling mupad from Matlab, now it gives different answer   
   (same as Maple and Mathematica)   
      
   >> evalin(symengine,'DIGITS := 60: simplify(sin(2.0*10^30))')   
   0.17950046751493908795061771231643809505098047699633484280836744   
   98514564171539337   
      
   But Matlab gives different answer   
   =================================   
   >> sin(2*10^30)   
      -0.018662125294758   
      
   Which is the correct result, and what is the algorithm used for such   
   evaluations when the argument of trig is large?   
      
   thanks,   
   --Nasser   
      
   --- SoupGate-Win32 v1.05   
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