表达式9: "o" Subscript, "r" "t" "h" "o" , Baseline left parenthesis, "u" , right parenthesis equals left parenthesis, negative "u" . "y" , "u" . "x" , right parenthesisorthou=−u.y,u.x
9
表达式10: "d" Subscript, "o" "t" , Baseline left parenthesis, "u" , "v" , right parenthesis equals "u" . "x" "v" . "x" plus "u" . "y" "v" . "y"dotu,v=u.xv.x+u.yv.y
10
表达式11: "d" Subscript, "o" "t" 2 , Baseline left parenthesis, "u" , right parenthesis equals "d" Subscript, "o" "t" , Baseline left parenthesis, "u" , "u" , right parenthesisdot2u=dotu,u
11
隐藏 标签 "n" equals "b" Subscript, "g" , Baseline left parenthesis, StartFraction, pi Over 4 , EndFraction , right parenthesis minus "b" Subscript, "g" , Baseline left parenthesis, 0 , right parenthesisn=bgπ4−bg0
隐藏 标签 "M" equals 1 half left parenthesis, "b" Subscript, "g" , Baseline left parenthesis, 0 , right parenthesis plus "b" Subscript, "g" , Baseline left parenthesis, StartFraction, pi Over 4 , EndFraction , right parenthesis , right parenthesisM=12bg0+bgπ4
表达式14: "d" Subscript, "o" "t" , Baseline left parenthesis, "n" , left parenthesis, "x" , "y" , right parenthesis , right parenthesis equals "d" Subscript, "o" "t" , Baseline left parenthesis, "n" , "M" , right parenthesisdotn,x,y=dotn,M
14
表达式15: "l" equals 0.8 6 3l=0.863
negative 10−10
1010
15
标签 "M" Subscript, "k" , Baseline equals left parenthesis, "M" . "x" minus "l" times "n" . "y" , "M" . "y" plus "l" times "n" . "x" , right parenthesisMk=M.x−l·n.y,M.y+l·n.x
