y+C.} 若u和v的關係對調,函數就不是調和共軛函數了,因為柯西-黎曼方程中的負號,讓此關係是非對稱的關係。 Brown, James Ward; Churchill, Ruel V. Complex variables and applications 6th. New York: McGraw-Hill
Peter Ward Booth; Barry L. Eppley; Rainer Schmelzeisen, Maxillofacial trauma and esthetic facial reconstruction, Churchill Livingstone(英语:Churchill Livingstone):
Down. On some of the mental affections of childhood and youth. J & A Churchill. 1887. ISBN 0-397-48017-2. OCLC 14771059. Kutzsche, S. John Langdon Down