CircumscribedBall
CircumscribedBall[{p1, p2, ...}] gives a ball with minimal radius that encloses the points p1, p2, ....
Examples
Find the smallest ball enclosing points:
CircumscribedBall[{{0, 0}, {1, 0}, {0, 1}}]Please visit the official Wolfram Language Reference for more details.