{ "item_title" : "Theory of Functions of a Complex Variable", "item_author" : [" Heinrich Burkhardt "], "item_description" : "Excerpt From Theory Of Functions Of A Complex Variable. In The First Chapter, I Have Introduced The Algebra Of Complex Num Bers As An Algebra Of Number-Pairs Without Giving A General Theory Of Number Systems Of Two (Or More) Units; I Have Rather Assumed With Out Discussion The Hypotheses Characteristic Of The Theory Of Ordinary Complex Numbers. The Second Chapter Contains A Detailed Geometrical Theory Of The Elementary Rational Functions Of A Complex Variable And The Conformal Representations Determined By Them. The Transition From The Plane To The Sphere By Stereographic Projection Is Also Considered; It Is Used At Various Places In The Following Chapters. The Chapter Closes With A Discussion Of The Symmetric Invariants Of Four Points As A Function Of Their Double Ratio; This Takes The Place Of An Example (In Itself Unimportant) Of A Rational Function Of A More General Character....", "item_img_path" : "https://covers4.booksamillion.com/covers/bam/9/38/819/104/9388191048_b.jpg", "price_data" : { "retail_price" : "30.99", "online_price" : "30.99", "our_price" : "30.99", "club_price" : "30.99", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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