序	子集	坐标符号	分坐标X	分坐标Y	分坐标Z	外接球半径符号	外接球半径平方
1	点	A	a	0	0	$ℝ_{O A}^{1}$	0
2	点	B	0	b	0	$ℝ_{O B}^{1}$	0
3	点	C	0	0	c	$ℝ_{O C}^{1}$	0
4	点	D	bct	act	abt	$ℝ_{O D}^{1}$	0
5	线	O_AB	$\frac{a}{2}$	$\frac{b}{2}$	0	$ℝ_{O A B}^{2}$	$\frac{1}{2^{2}} (a^{2} + b^{2})$
6	线	O_AC	$\frac{a}{2}$	0	$\frac{c}{2}$	$ℝ_{O A C}^{2}$	$\frac{1}{2^{2}} (a^{2} + c^{2})$
7	线	O_BC		$\frac{b}{2}$	$\frac{c}{2}$	$ℝ_{O B C}^{2}$	$\frac{1}{2^{2}} (b^{2} + c^{2})$
8	线	O_AD	$\frac{a + b c t}{2}$	$\frac{a c t}{2}$	$\frac{a b t}{2}$	$ℝ_{O A B}^{2}$	$\frac{1}{2^{2}} (a^{2} + d^{2})$
9	线	O_BD	$\frac{b c t}{2}$	$\frac{b + a c t}{2}$	$\frac{a b t}{2}$	$ℝ_{O B D}^{2}$	$\frac{1}{2^{2}} (b^{2} + d^{2})$
10	线	O_CD	$\frac{b c t}{2}$	$\frac{a c t}{2}$	$\frac{c + a b t}{2}$	$ℝ_{O C D}^{2}$	$\frac{1}{2^{2}} (c^{2} + d^{2})$
11	面	O_ABC	$\frac{a^{3} (b^{2} + c^{2})}{2 s_{A B C}^{2}}$	$\frac{b^{3} (a^{2} + c^{2})}{2 s_{A B C}^{2}}$	$\frac{c^{3} (a^{2} + b^{2})}{2 s_{A B C}^{2}}$	$ℝ_{O A B C}^{3}$	$\frac{(a^{2} + c^{2}) (a^{2} + b^{2}) (b^{2} + c^{2})}{4 s_{A B C}^{2}}$