So you know A and B. To get beam angle: X=2*atan(B/A)Tyler said:beam angle when I know the throw distance and beam width
So you know the beam angle (X) and B. To get throw: A=B/tan(X/2)Tyler said:throw distance when I know the beam width and beam angle
So you know beam angle (X) and A. To get Beam width: A*tan(x/2)Tyler said:beam width when I know the beam angle and throw distance
Do they still print trig. tables in the back of textbooks?...Most of these calculations require a good scientific calculator. ...
Do they still print trig. tables in the back of textbooks? Edit: Backstage Handbook, Third Edition (Blue Cover). Paul Carter. Broadway Press, 1994, page 226.
FYI 1994 is the most "current" edition of the Backstage Handbook. Maybe if we are lucky 2009 will bring us a 15 year update.
What in the current (1994) edition of Backstage Handbook is out-of-date? What additions do you feel necessary?...Maybe if we are lucky 2009 will bring us a 15 year update.
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