運算式 3: StartFraction, 1 Over "R" , EndFraction equals tangent left parenthesis, 90 minus StartFraction, "X" Over 2 , EndFraction , right parenthesis1R=tan90−X2
3
運算式 4: "R" equals StartFraction, 1 Over tan left parenthesis, 90 minus StartNestedFraction, "X" NestedOver 2 , EndNestedFraction , right parenthesis , EndFractionR=1tan90−X2
equals=
1.8 0 4 2 4 7 6 4 1 5 11.80424764151
4
運算式 5:
5
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更改圖片
中心：
center: left parenthesis, 0 , 0 , right parenthesis0,0
