Simplify symbolic API by using "symbol=value" to associate a runtime value to a symbol.
Simplify symbolic API by using "symbol=value" to associate a runtime value to a symbol.

ritsu1228/eigen,pasuka/eigen,pasuka/eigen,pasuka/eigen,ritsu1228/eigen,ritsu1228/eigen,pasuka/eigen,pasuka/eigen,ritsu1228/eigen,ritsu1228/eigen