Euler's totient function: Difference between revisions

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The ''[[Disquisitiones Arithmeticae]]'' has been translated from Latin into English and German. The German edition includes all of Gauss's papers on number theory: all the proofs of quadratic reciprocity, the determination of the sign of the Gauss sum, the investigations into biquadratic reciprocity, and unpublished notes.
 
References to the ''Disquisitiones'' are of the form Gauss, DA, art. ''nnn''.