Recent Comments
dougaj4 on Drawing in Excel – … 
J.D. on Drawing in Excel – … dougaj4 on The Largest Early World Map… 
Doug Glancy on The Largest Early World Map… 
Larry Schuster on How Reinforced Earth work… dougaj4 on ConBeamU 4.13 
roshan_rai@hotmail.c… on ConBeamU 4.13 dougaj4 on RC Design Functions 8_03 
andre on RC Design Functions 8_03 dougaj4 on RC Design Functions 8_03 andre on RC Design Functions 8_03 dougaj4 on RC Design Functions 8_03 andre on RC Design Functions 8_03 dougaj4 on RC Design Functions 8_03 
David, Lim (Korea) on RC Design Functions 8_03
Tag Archives: Radius
Finding Circle Centres in 3D
In 2 new functions for IP.xls I described two Excel User Defined Functions (UDFs) to find the radius and centre of a circle defined by 3D coordinates for either 3 points on the circumference, or for two tangent points and the … Continue reading
Posted in Coordinate Geometry, Excel, Maths, Newton, UDFs, VBA
Tagged 3D coordinates, Center, Circle Centre, direction cosines, Excel, IP2.xls, Radius, UDF, VBA
5 Comments
Two new functions for IP.xls
Edit 8 Feb 2012: The functions described below have been superseded by new versions which are described at https://newtonexcelbach.wordpress.com/2009/08/18/finding-circle-centres-in-3d/. That link also gives a description (with diagrams!) of how the functions work. The download file for the new versions is … Continue reading
