\n"; echo "Sphere Intersect\n"; echo "\n"; echo "Sphere Equation:
\n"; echo "(x-u)² + (y-v)$sup2; + (z-w)$sup2; - r²l = 0
\n"; echo "
Line Equation:
\n"; echo "(x-u) + (y-v) + (z-w) = 1\n"; echo "\n"; echo "\n";