ATTENTION MODERATORS/ADMIN. Reporting the troll has proved ineffective. Tach continues to dishonestly evade. The only recourse is to bring this to your attention in open forum: Here is the exchange so far... Tach, you chose to dishonestly evade again. You have been banned previously for that. You have been reported in this instance also. Please stop evading now, and answer properly and honestly OR admit you don't know what you meant when you suggested 'sharing' a dimensionless 'endpoint'. Thankyou. Edit: Tach: If you continue to evade instead of either answering the question OR admitting you don't know, then you are vulnerable to being banned for evading. How many infractions is that against you now?