lib/plurimath/math/function/coth.rb in plurimath-0.3.5 vs lib/plurimath/math/function/coth.rb in plurimath-0.3.6

@@ -4,9 +4,12 @@
 
 module Plurimath
   module Math
     module Function
       class Coth < UnaryFunction
+        def validate_function_formula
+          false
+        end
       end
     end
   end
 end