次の順に図示します。
　　　\( A \cap B　→　\overline{A} \cup \overline{B}　→　A \cup B　→　\overline{A} \cap \overline{B} \)
　　　　　　　　　　　\( →　A \cap \overline{B}　→　\overline{A} \cup B　→　\overline{A} \cap B　→　A \cup \overline{B} \)

\[ \begin{flalign} \left(x+1\right)^{2}+y^{2}=1.5^{2}&& \end{flalign} \] \[ \begin{flalign} \left(x-1\right)^{2}+y^{2}=1.5^{2}&& \end{flalign} \] \[ \begin{flalign} A=\left(x+1\right)^{2}+y^{2}-1.5^{2}&& \end{flalign} \] \[ \begin{flalign} B=\left(x-1\right)^{2}+y^{2}-1.5^{2}&& \end{flalign} \] \[ \begin{flalign} A\le0&& \end{flalign} \] \[ \begin{flalign} B\le0&& \end{flalign} \] \[ \begin{flalign} f\left(x\right)=\operatorname{floor}\left(x\right)&& \end{flalign} \] \[ \begin{flalign} a=0　　　\color{blue}\text{← 0 ≦ a ≦ 8 の範囲で自動スライド }&& \end{flalign} \] \[ \begin{flalign} f\left(x\right)=\operatorname{floor}\left(x\right)&& \end{flalign} \] \[ \begin{flalign} \min\left(-A,-B\right)\le0\ \left\{\ f\left(a\right)=1\right\}&& \end{flalign} \] \[ \begin{flalign} \min\left(A,B\right)\le0\ \left\{\ f\left(a\right)=2\right\}&& \end{flalign} \] \[ \begin{flalign} \max\left(-A,-B\right)\le0\ \left\{\ f\left(a\right)=3\right\}&& \end{flalign} \] \[ \begin{flalign} \max\left(A,-B\right)\le0\ \left\{\ f\left(a\right)=4\right\}&& \end{flalign} \] \[ \begin{flalign} \min\left(-A,B\right)\le0\ \left\{\ f\left(a\right)=5\right\}&& \end{flalign} \] \[ \begin{flalign} \max\left(-A,B\right)\le0\ \left\{\ f\left(a\right)=6\right\}&& \end{flalign} \] \[ \begin{flalign} \min\left(A,-B\right)\le0\ \left\{\ f\left(a\right)=7\right\}&& \end{flalign} \]

コピペ用テキストエリア（ Ctrl + v で貼り付け ）：

\left(x+1\right)^{2}+y^{2}=1.5^{2} \left(x-1\right)^{2}+y^{2}=1.5^{2} A=\left(x+1\right)^{2}+y^{2}-1.5^{2} B=\left(x-1\right)^{2}+y^{2}-1.5^{2} A\le0 B\le0 f\left(x\right)=\operatorname{floor}\left(x\right) a=0 f\left(x\right)=\operatorname{floor}\left(x\right) \min\left(-A,-B\right)\le0\ \left\{\ f\left(a\right)=1\right\} \min\left(A,B\right)\le0\ \left\{\ f\left(a\right)=2\right\} \max\left(-A,-B\right)\le0\ \left\{\ f\left(a\right)=3\right\} \max\left(A,-B\right)\le0\ \left\{\ f\left(a\right)=4\right\} \min\left(-A,B\right)\le0\ \left\{\ f\left(a\right)=5\right\} \max\left(-A,B\right)\le0\ \left\{\ f\left(a\right)=6\right\} \min\left(A,-B\right)\le0\ \left\{\ f\left(a\right)=7\right\}