ok

t.lua

@@ -0,0 +1,30 @@
+local kiwi = require("kiwi")
+
+local c
+--debug.getupvalue
+do
+   local v1 = kiwi.Var("v1")
+   local v2 = kiwi.Var("v2")
+   local v3 = kiwi.Var("v3")
+   local v4 = kiwi.Var("v4")
+   local v5 = kiwi.Var("v5")
+   local c = (3 * v1 + 4 * v2 + 6 * v3):eq(0)
+
+   local e = c:expression()
+   print(e)
+end
+
+collectgarbage("collect")
+collectgarbage("collect")
+-- c = (3 * v1 + 4 * v2 + 6 * v3):eq(0)
+
+-- local t = c:expression():terms()
+-- print(t[2].var)
+
+-- for k, v in ipairs(t) do
+--    print(k, v.var, v.coefficient)
+-- end
+
+-- for k, v in pairs(kiwi.ErrKind) do
+--    print(k, v)
+-- end