@@ -33,3 +33,7 @@
rather than "sin(x ^ 2)" (which it is now).
- Add error message to exception in frontend.
+
+# Now works:
+# int_(-3)^(3) \pi (3^2 - x^2) dx -> 36pi
+# int_(-r)^(r) \pi (r^2 - x^2) dx -> 4 / 3 * pi * r ^ 3