表达式11: "p" equals "a" Subscript, "b" "s" , Baseline left parenthesis, "A" minus "B" , right parenthesis plus "a" Subscript, "b" "s" , Baseline left parenthesis, "B" minus "C" , right parenthesis plus "a" Subscript, "b" "s" , Baseline left parenthesis, "C" minus "A" , right parenthesisp=absA−B+absB−C+absC−A
equals=
5.1 0 8 7 9 2 5 0 1 6 15.10879250161
11
I: "I" equals StartFraction, 1 Over "p" , EndFraction left parenthesis, "a" Subscript, "b" "s" , Baseline left parenthesis, "B" minus "C" , right parenthesis "A" plus "a" Subscript, "b" "s" , Baseline left parenthesis, "C" minus "A" , right parenthesis "B" plus "a" Subscript, "b" "s" , Baseline left parenthesis, "A" minus "B" , right parenthesis "C" , right parenthesisI=1pabsB−CA+absC−AB+absA−BC
表达式13: "r" equals "a" Subscript, "b" "s" , Baseline left parenthesis, "A" , right parenthesisr=absA
00
定义域\theta最小值：
less than or equal to theta less than or equal to≤θ≤
2 pi2π
定义域\theta最大值：
equals=
11
13
表达式14: "d" Subscript, "o" "t" 2 , Baseline left parenthesis, left parenthesis, "x" , "y" , right parenthesis minus "I" , right parenthesis equals left parenthesis, StartFraction, "d" Subscript, "e" "t" , Baseline left parenthesis, "B" minus "A" , "C" minus "A" , right parenthesis Over "p" , EndFraction , right parenthesis squareddot2x,y−I=detB−A,C−Ap2
