運算式 10: "x" Subscript, 3 , Baseline equals 6.6 2x3=6.62
00
77
10
運算式 11: "u" equals StartFraction, left parenthesis, "x" Subscript, 1 , Baseline plus "x" Subscript, 2 , Baseline plus "x" Subscript, 3 , Baseline , right parenthesis Over 3 , EndFractionu=x1+x2+x33
equals=
3.6 3 3 3 3 3 3 3 3 3 33.63333333333
11
(A,B,Cのx座標の)平均のy座標 left parenthesis, "u" , "f" left parenthesis, "u" , right parenthesis , right parenthesisu,fu
運算式 13: "y" equals left parenthesis, ln left parenthesis, "u" , right parenthesis plus 1 , right parenthesis left parenthesis, "x" minus "u" , right parenthesis plus "f" left parenthesis, "u" , right parenthesisy=lnu+1x−u+fu
13
y座標の平均(△ABCの重心) left parenthesis, "u" , StartFraction, left parenthesis, "f" left parenthesis, "x" Subscript, 1 , Baseline , right parenthesis plus "f" left parenthesis, "x" Subscript, 2 , Baseline , right parenthesis plus "f" left parenthesis, "x" Subscript, 3 , Baseline , right parenthesis , right parenthesis Over 3 , EndFraction , right parenthesisu,fx1+fx2+fx33
