Expression 3: "x" squared plus StartFraction, "y" squared Over phi plus left parenthesis, StartRoot, 4 phi , EndRoot minus 2 , right parenthesis "y" plus StartNestedFraction, phi minus StartRoot, 4 phi , EndRoot plus 1 NestedOver phi , EndNestedFraction "y" squared , EndFraction equals 1x2+y2ϕ+4ϕ−2y+ϕ−4ϕ+1ϕy2=1
3
Expression 4: phi equals StartFraction, 1 plus StartRoot, 5 , EndRoot Over 2 , EndFractionϕ=1+52
equals=
1.6 1 8 0 3 3 9 8 8 7 51.61803398875
4
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Center:
center: left parenthesis, negative 1.5 5 , 1.2 6 7 , right parenthesis−1.55,1.267