ã³ã³ãã¥ã¼ã¿ã¼ã§è¤ç´ æ°ã表ãæã¯ãé常ã¯å®é¨ã¨èé¨ã®çµãããããæµ®åå°æ°ç¹æ°ã¨ãã¦æã¤ã è¤ç´ æ°ã®æ¼ç®ã¯ãæ°å¦çã«ã¯\begin{align*} (a+bi) \pm (c+di) &= (a\pm c) + (b\pm d)i \\(a+bi)(c+di) &= (ac-bd) + (ad+bc)i \\ \frac{a+bi}{c+di} &= \frac{(ac+bd)+(-ad+bc)i}{c^2+d^2} \\ \left\lvert a+bi\right\rvert &= \sqrt{a^2+b^2} \end{align*} ã¨ãªãã®ã§ãããã«å¯¾å¿ããæµ®åå°æ°ç¹æ¼ç®ã使ãã°è¯ããâ¦ã¨ããåç´ãªè©±ã¨ã¯ãªããªãã ãã®è¨äºã§ã¯ä¸»ã«Cè¨èªã使ã£ã¦è©±ãããããæµ®åå°æ°ç¹æ°ã®çµã¨ãã¦è¤ç´ æ°ãå®è£ ããéããã®è¨äºã«æ¸ãåé¡ã¨ã¯ç¡ç¸ã§ã¯ããããªãããããããããã¯è¤ç´ æ°ã®æ¼ç®ãå®è£ ããæã®
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