Add missing {Real}

Author: YingboMa

src/differentials.jl

@@ -45,7 +45,7 @@ function occursin_info(x, expr::Term)
         if all(_isfalse, args)
             return false
         end
-        Term(true, args)
+        Term{Real}(true, args)
     end
 end
 function occursin_info(x, expr::Sym)

src/systems/abstractsystem.jl

@@ -190,9 +190,9 @@ end
 
 function namespace_expr(O::Term,name,ivname)
     if O.op isa Sym
-        Term(rename(O.op,renamespace(name,O.op.name)),namespace_expr.(O.args,name,ivname))
+        Term{Real}(rename(O.op,renamespace(name,O.op.name)),namespace_expr.(O.args,name,ivname))
     else
-        Term(O.op,namespace_expr.(O.args,name,ivname))
+        Term{Real}(O.op,namespace_expr.(O.args,name,ivname))
     end
 end
 namespace_expr(O,name,ivname) = O

src/utils.jl

@@ -35,7 +35,7 @@ function detime_dvs(op::Term)
   if op.op isa Sym
       Sym{Real}(nameof(op.op))
   else
-    Term(op.op,detime_dvs.(op.args))
+      Term{Real}(op.op,detime_dvs.(op.args))
   end
 end
 detime_dvs(op) = op
@@ -232,5 +232,5 @@ function diff2term(O)
         (x, t, order) = flatten_differential(O)
         return lower_varname(x, t, order)
     end
-    return Term(O.op, diff2term.(O.args))
+    return Term{Real}(O.op, diff2term.(O.args))
 end