User talk:Jaycall
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Joel's First Talk Message to Jay
Jay: In the email message that you sent to me today, you indicated that you had added the 3rd component to the dx/dt equation. I don't see that modification in the current T3Coordinates page. --Tohline 15:05, 29 May 2010 (MDT)
Jay's Reply
Joel: It's at the bottom of the section entitled "Time-Derivative of Position and Velocity Vectors". Under the history tab, can you see the edits that I made. It was the very first edit and was fairly minor. I only added a couple terms.