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 Author Comment/Response Steve 01/23/13 11:57pm One problem is using DMS format as an input to the trig functions. Convert these to decimal first (and might as well convert to radians while you're at it): In[29]:= a = FromDMS[{33., 13.6, 0}] Degree b = FromDMS[{23., 55.4, 0}] Degree c = FromDMS[{109., 10.9, 0}] Degree Out[29]= 0.579915 Out[30]= 0.417541 Out[31]= 1.90558 The next problem is using Cos[z] as your variable. Cos is a built-in function. Change the name: In[32]:= fCos = (Sin[-a ] - Sin[-b ]*Cos[c ])/(Cos[-b ]*Sin[c ]) Out[32]= -0.789017 URL: ,

 Subject (listing for 'Trigonometry input question') Author Date Posted Trigonometry input question Sint 01/23/13 12:47pm Re: Trigonometry input question Steve 01/23/13 11:57pm Re: Trigonometry input question Bill Simpson 01/24/13 00:20am Re: Trigonometry input question Sint 01/24/13 1:34pm Re: Re: Trigonometry input question Bill Simpson 01/24/13 10:52pm
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