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jandan.net
15 天
虚数:科技与工程的隐秘魔法
到了现实世界,复分析更是大放异彩。Rafael Bombelli 想出对复数做加减乘除,打开了用微积分处理它们的大门。这下,物理学家研究信号和数据传输就顺手多了。比如,处理小波(数据里的小波动)全靠复分析。卫星信号杂音太多?它能清理干净。图片占内存太大?
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