「Pythonプãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã€ï¼ˆãã®ä»–ã®ãƒˆãƒ”ック・三体å•é¡Œï¼‰Pythonプãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ï¼ˆä¸‰ä½“å•é¡Œï¼‰ ã“ã®ãƒšãƒ¼ã‚¸ã§ã¯ã€æƒ‘星é‹å‹•ã®ã‚·ãƒŸãƒ¥ãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ã‚’試ã¿ã‚‹ï¼ˆã“ã“ã¯ã“ã‚Œã‹ã‚‰ï¼‰ã€‚ １．惑星ã®é‹å‹• è³ªé‡ $m_1$ ã®ç‰©ä½“1ã®ä½ç½®ãƒ™ã‚¯ãƒˆãƒ«ã‚’ $\boldsymbol{r}_1$ , è³ªé‡ $m_2$ ã®ç‰©ä½“2ã®ä½ç½®ãƒ™ã‚¯ãƒˆãƒ«ã‚’ $\boldsymbol{r}_2$ ã¨ã™ã‚‹ã¨ã€ 物体1ã«åƒãé‡åŠ›ã¯ã€ä¸‡æœ‰å¼•åŠ›å®šæ•°ã‚’$G$ã¨ã™ã‚‹ã¨ $$ \boldsymbol{F}_{21} = G m_1 m_2 \frac{\boldsymbol{r}_2 - \boldsymbol{r}_1}{\left| \boldsymbol{r}_2 - \boldsymbol{r}_1 \right|^3} $$ ã§ã‚ã‚Šã€ç‰©ä½“1ã«åƒã力ãŒã“れ以外ã«ç„¡ã„ã¨ã™ã‚‹ã¨ã€ç‰©ä½“1ã®é‹å‹•æ–¹ç¨‹å¼ã¯ $$ m_1 \frac{d^2 \boldsymbol{r}_1}{dt^2} = \boldsym
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