COMPLEX NUMBERS - NUMBER THEORY
inverse of x + iy is the complex number (−x) + i(−y), the multiplicative identity is 1 and the multiplicative inverse of the non–zero complex number x+iy is the complex number u+iv, where u = x x2 +y2 and v = −y x2 +y2. (If x+iy 6= 0, then x 6= 0 or y 6= 0, so x2 +y2 6= 0.) From equations 5.1 and 5.2, we observe that addition and ...
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ELEMENTARY LINEAR ALGEBRA - Number theory
www.numbertheory.orgELEMENTARY LINEAR ALGEBRA K. R. MATTHEWS DEPARTMENT OF MATHEMATICS UNIVERSITY OF QUEENSLAND Corrected Version, 27th April 2013 Comments to the author at keithmatt@gmail.com
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SOLUTIONS TO PROBLEMS ELEMENTARY LINEAR …
www.numbertheory.orgsolutions to problems elementary linear algebra k. r. matthews department of mathematics university of queensland first printing, 1991
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