Example #1
0
 def _eval_rewrite_as_cot(self, arg):
     cot_half = S.Cot(S.Half * arg)**2
     return (cot_half - 1) / (cot_half + 1)
Example #2
0
 def _eval_rewrite_as_cot(self, arg):
     return 1 / S.Cot(arg)
Example #3
0
 def _eval_rewrite_as_cot(self, arg):
     cot_half = S.Cot(S.Half * arg)
     return 2 * cot_half / (1 + cot_half**2)