Merge pull request #423 from JuliaSymbolics/s/neg-pow

JuliaSymbolics · Jan 18, 2022 · f588c99 · f588c99
2 parents fe731b5 + 8b5aed2
commit f588c99
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/src/polyform.jl b/src/polyform.jl
@@ -275,8 +275,14 @@ add_divs(x, y::Div) = (x * y.den + y.num) / y.den
 add_divs(x, y) = x + y
 
 function frac_similarterm(x, f, args; kw...)
-    if f in (*, /, \, +, -, ^)
+    if f in (*, /, \, +, -)
         f(args...)
+    elseif f == (^)
+        if args[2] isa Integer && args[2] < 0
+            1/((args[1])^(-args[2]))
+        else
+            args[1]^args[2]
+        end
     else
         similarterm(x, f, args; kw...)
     end