Spherical radius given four points - MATLAB Cody - MATLAB Central

Problem 636. Spherical radius given four points

Difficulty:
(109)
Rate

Determine the radius of a sphere provided four non-coplanar points on the surface of the sphere.

 pts = [x1 y1 z1;
        x2 y2 z2;
        x3 y3 z3;
        x4 y4 z4]

Hint: See http://steve.hollasch.net/cgindex/geometry/sphere4pts.html

Example:

 pts = [1 0 0;
        0 1 0;
        0 0 1;
       -1 0 0]
 r=1
Solve

Solution Stats

27.52% Correct | 72.48% Incorrect
Last Solution submitted on Apr 21, 2025

Problem Comments

Solution Comments

Show comments
PIVlab surpasses 100K all-time File Exchange downloads
During the past twelve months, PIVlab, a MATLAB Community Toolbox for particle...
Mike Croucher in General
4
8
View Post

Problem Recent Solvers241

Suggested Problems

More from this Author308

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!