e^j\u03c9t=cos\u03c9t+jsin\u03c9t ....J\u662f\u4e0d\u662f\u4ee3\u8868-1\uff1f

j\u662f\u865a\u6570\u5355\u4f4d\uff0c\u7b49\u4e8e-1\u7684\u5e73\u65b9\u6839\u3002\u6570\u5b66\u4e0a\u4e00\u822c\u7528i\u8868\u793a\uff0c\u4f46\u5728\u7269\u7406\u6216\u7535\u5b66\u4e2d\uff0c\u4e3a\u4e86\u907f\u514d\u548c\u7535\u6d41\u7b26\u53f7i\u6df7\u6dc6\uff0c\u6539\u7528j\u8868\u793a\u3002
\u6570\u5b66\u4e2d\u6b27\u62c9\u516c\u5f0f\u7684\u8868\u793a\u662f
e^(i\u03c6)=cos\u03c6+isin\u03c6
\u4f60\u5c06\u7b49\u5f0f\u4e24\u8fb9\u5206\u522b\u7528\u591a\u9879\u5f0f\u7ea7\u6570\u5c55\u5f00\uff0c\u5c31\u77e5\u9053\u7b49\u5f0f\u6210\u7acb\u4e86\u3002

\u6b27\u62c9\u516c\u5f0f\uff1fJ\u662f\u865a\u6570\u554a\u3002-1\u7684\u5e73\u65b9\u6839\u3002